DiseaseName
17β-Hydroxysteroid dehydrogenase III deficiency
18p-
1p36 deletion syndrome
1q21.1 deletion syndrome
1q21.1 duplication syndrome
2-Hydroxyglutaric aciduria
2-Methylbutyryl-CoA dehydrogenase deficiency
2009 flu pandemic
22q13 deletion syndrome
3-hydroxyacyl-coenzyme A dehydrogenase deficiency
3-M syndrome
3-Methylcrotonyl-CoA carboxylase deficiency
3-Methylglutaconic aciduria
3C syndrome
3q29 microdeletion syndrome
45,X/46,XY mosaicism
49,XXXXX
49,XXXXY
5α-Reductase deficiency
6-phosphogluconate dehydrogenase deficiency
8p23.1 duplication syndrome
9q34 deletion syndrome
AA amyloidosis
Aarskog–Scott syndrome
Aase syndrome
ABCD syndrome
Abdallat–Davis–Farrage syndrome
Abdominal aortic aneurysm
Abdominal epilepsy
Abdominal mass
Abdominal obesity
Abdominal pain
Abdominal pregnancy
Abdominal trauma
Abdominal wall defect
abducens nerve disease
Aberrant subclavian artery
Abetalipoproteinemia
Abietic acid dermatitis
Abnormal posturing
Abnormal uterine bleeding
Abscess
Absence seizure
Abusive head trauma
Acalculia
acalculous cholecystitis
Acanthamoeba keratitis
Acanthocheilonemiasis
Acanthosis nigricans
Acariasis
Acatalasia
Accelerated phase chronic myelogenous leukemia
Accessory auricle
Accessory breast
accessory nerve disease
Accessory nerve disorder
Accessory pancreas
Aceruloplasminemia
Acetabular fracture
Achalasia
Achard syndrome
Achilles tendinitis
Achilles tendon rupture
Achlorhydria
Achondroplasia
Achromatopsia
Acid erosion
acidophil adenoma
Acid–base imbalance
acinar cell carcinoma
Acinar cell carcinoma of the pancreas
ACL injury
Acne
Acne fulminans
acoustic neuroma
Acquired brain injury
Acquired generalized lipodystrophy
Acquired idiopathic generalized anhidrosis
acquired immunodeficiency syndrome
Acral lentiginous melanoma
Acrania
Acrocallosal syndrome
Acrocephalosyndactylia
Acrocyanosis
Acrodermatitis
Acrodermatitis chronica atrophicans
Acrodermatitis enteropathica
Acrodynia
Acromegaly
Acrophobia
Acro–dermato–ungual–lacrimal–tooth syndrome
ACTH-secreting pituitary adenoma
Actinic cheilitis
Actinic conjunctivitis
Actinic elastosis
Actinic keratosis
Actinobacillosis
Actinomycosis
Acute abdomen
Acute beryllium poisoning
Acute biphenotypic leukaemia
Acute bronchitis
Acute cerebellar ataxia of childhood
acute chest syndrome
Acute coronary syndrome
Acute decompensated heart failure
Acute disseminated encephalomyelitis
Acute erythroid leukemia
Acute exacerbation of chronic obstructive pulmonary disease
Acute fatty liver of pregnancy
Acute flaccid myelitis
Acute generalized exanthematous pustulosis
acute hemorrhagic conjunctivitis
acute hemorrhagic leukoencephalitis
Acute infectious thyroiditis
Acute intermittent porphyria
Acute interstitial pneumonitis
Acute kidney failure
Acute kidney injury
acute kidney tubular necrosis
Acute liver failure
Acute lymphoblastic leukemia
Acute lymphocytic leukemia
Acute megakaryoblastic leukemia
Acute monocytic leukemia
Acute myeloblastic leukemia with maturation
Acute myelogenous leukemia
Acute myeloid leukemia
Acute necrotizing ulcerative gingivitis
Acute pancreatitis
Acute panmyelosis with myelofibrosis
Acute pericarditis
acute porphyria
Acute proliferative glomerulonephritis
Acute promyelocytic leukemia
Acute prostatitis
Acute radiation syndrome
Acute respiratory distress syndrome
Acute retinal necrosis
acute retinal necrosis syndrome
Acute severe asthma
Acute sinusitis
Acute stress reaction
Acute tubular necrosis
Adamantinoma
Adams–Oliver syndrome
Adams–Stokes syndrome
Addiction
Addison's disease
Adducted thumb syndrome
Adenine phosphoribosyltransferase deficiency
Adenocarcinoma
adenocarcinoma in situ
Adenocarcinoma in situ of the lung
adenofibroma
Adenoid hypertrophy
Adenoiditis
Adenomatoid tumor
Adenomyoma
Adenomyomatosis
Adenomyosis
adenosarcoma
Adenosine monophosphate deaminase deficiency type 1
adenosquamous carcinoma
Adenylosuccinate lyase deficiency
Adhesive capsulitis of shoulder
Adie syndrome
Adiposis dolorosa
Adiposogenital dystrophy
Adipsia
Adjustment disorder
Adjustment disorders
adrenal cortex cancer
adrenal cortex disease
Adrenal crisis
adrenal gland cancer
adrenal gland disease
adrenal gland hyperfunction
Adrenal insufficiency
adrenal rest tumor
Adrenocortical carcinoma
Adrenoleukodystrophy
Adult attention-deficit/hyperactivity disorder (ADHD)
adult respiratory distress syndrome
Adult Still's disease
adult T-cell leukemia
Adult T-cell leukemia/lymphoma
Adult-onset immunodeficiency syndrome
Adult-onset Still's disease
Advanced sleep phase disorder
Adverse drug reaction
Aerobic vaginitis
Aerosol burn
afferent loop syndrome
African iron overload
African tick bite fever
African trypanosomiasis
agammaglobulinemia
Age spots (liver spots)
Agenesis of the corpus callosum
Aggressive NK-cell leukemia
aggressive periodontitis
Agnosia
Agoraphobia
Agranulocytosis
Agraphesthesia
Aicardi syndrome
Aicardi–Goutières syndrome
AIDS-related lymphoma
Ainhum
Air embolism
Airplane ear
Airsickness
Akathisia
akinetic mutism
AL amyloidosis
Alagille syndrome
Albinism
Albright's hereditary osteodystrophy
Albuminuria
Alcohol abuse
Alcohol dependence
Alcohol flush reaction
Alcohol intolerance
Alcohol intoxication
Alcohol poisoning
Alcohol use disorder
Alcohol withdrawal syndrome
Alcohol-related brain damage
Alcoholic cardiomyopathy
Alcoholic hallucinosis
Alcoholic hepatitis
Alcoholic Korsakoff syndrome
Alcoholic liver disease
alcoholic pancreatitis
Alcoholic polyneuropathy
alcoholic psychosis
Alcoholism
Aldolase A deficiency
aleutian mink disease
Alexander disease
alexia
Alice in Wonderland syndrome
Alien hand syndrome
Alkalosis
Alkaptonuria
Allergic bronchopulmonary aspergillosis
Allergic conjunctivitis
Allergic contact dermatitis
allergic hypersensitivity disease
Allergic rhinitis
Allergies
Allergy
Allodynia
Alogia
alopecia
Alopecia areata
Alopecia universalis
Alpha 1-antitrypsin deficiency
alpha thalassemia
Alpha-gal syndrome
Alpha-mannosidosis
Alpha-thalassemia
Alport syndrome
Alström syndrome
alternating exotropia
Alternating hemiplegia
Alternating hemiplegia of childhood
Altitude sickness
Alveolar capillary dysplasia
Alveolar osteitis
alveolar periostitis
Alveolar rhabdomyosarcoma
Alveolar soft part sarcoma
Alzheimer's disease
Amalgam tattoo
Amaurosis fugax
Ambiguous genitalia
Amblyopia
amebiasis
Amelanotic melanoma
Amelia (birth defect)
Amelogenesis imperfecta
Amenorrhea
amino acid metabolic disorder
Ammonia poisoning
Amnesia
amnestic disorder
Amniotic band constriction
Amniotic fluid embolism
Amoebiasis
Amoebic liver abscess
Amphistomiasis
Amputation
Amusia
Amyloidosis
Amyoplasia
Amyotrophic lateral sclerosis
Amyotrophic lateral sclerosis (ALS)
amyotrophic neuralgia
Anal cancer
Anal fissure
Anal fistula
anal gland neoplasm
Anal itching
Analgesic nephropathy
Anaphylaxis
Anaplasmosis
Anaplastic astrocytoma
Anaplastic large-cell lymphoma
Anaplastic thyroid cancer
Ancylostomiasis
Andersen-Tawil syndrome
Andersen–Tawil syndrome
Androgen deficiency
Androgen insensitivity syndrome
Anemia
Anemia of chronic disease
Anencephaly
Aneuploidy
Aneurysm
Aneurysm of sinus of Valsalva
Aneurysmal bone cyst
Angelman syndrome
Angina
Angiodysplasia
Angioedema
angioid streaks
Angioimmunoblastic T-cell lymphoma
Angiokeratoma
Angiolipoma
Angioma
Angiomatosis
Angiomyolipoma
angiomyoma
Angiosarcoma
Angiostrongyliasis
angle-closure glaucoma
Angular cheilitis
Anhedonia
Anhidrosis
Animal bite
Animal trypanosomiasis
Aniridia
anisakiasis
Aniseikonia
Anismus
Anisocoria
Anisometropia
Ankle fracture
Ankyloglossia
Ankylosing spondylitis
Ankylosis
Annual ryegrass toxicity
Annular pancreas
anogenital venereal wart
Anomalous left coronary artery from the pulmonary artery
Anomalous pulmonary venous connection
Anomic aphasia
Anophthalmia
Anorectal abscess
Anorectal varices
Anorexia (symptom)
Anorexia nervosa
Anorgasmia
Anorgasmia in women
Anosognosia
Anovulation
Antepartum bleeding
anterior cerebral artery infarction
Anterior cerebral artery syndrome
Anterior compartment syndrome
Anterior cruciate ligament injury
Anterior cutaneous nerve entrapment syndrome
Anterior ischemic optic neuropathy
Anterior prolapse (cystocele)
Anterior spinal artery syndrome
Anterograde amnesia
anterolateral myocardial infarction
anthracosilicosis
anthracosis
Anthrax
anthrax disease
Antibiotic-associated diarrhea
Antidepressant discontinuation syndrome
Antiphospholipid syndrome
Antisocial personality disorder
Antisynthetase syndrome
Antithrombin III deficiency
Antley-Bixler syndrome
Antley–Bixler syndrome
Anton–Babinski syndrome
anuria
anus disease
anus neoplasm
Anxiety disorder
Anxiety disorders
Aortic aneurysm
aortic disease
Aortic dissection
Aortic insufficiency
Aortic stenosis
Aortic valve disease
aortic valve insufficiency
aortic valve prolapse
Aortic valve regurgitation
aortic valve stenosis
Aortitis
Aortoenteric fistula
Aortoiliac occlusive disease
Apert syndrome
Aphasia
Aphthous stomatitis
Aplastic anemia
Apnea of prematurity
Apneustic respirations
Apparent mineralocorticoid excess syndrome
Appendicitis
Appendix cancer
Apraxia
Apraxia of speech
Aprosodia
Aquagenic pruritus
Aquagenic urticaria
Arachnodactyly
Arachnoid cyst
Arachnoiditis
Arachnophobia
Arbovirus
Arcuate uterus
Arcus senilis
ARDS
Argininosuccinic aciduria
ariboflavinosis
Aromatase deficiency
Aromatase excess syndrome
arrhythmogenic right ventricular cardiomyopathy
Arrhythmogenic right ventricular dysplasia
Arsenic poisoning
Arterial embolism
Arterial tortuosity syndrome
Arteriolosclerosis
Arteriosclerosis
Arteriosclerosis / atherosclerosis
Arteriosclerosis obliterans
Arteriovenous fistula
Arteriovenous malformation
arteriovenous malformations of the brain
Arteritic anterior ischemic optic neuropathy
Arteritis
Arthralgia
Arthritis
Arthrogryposis
Arthropathy
Arthus reaction
articulation disorder
Asbestosis
Ascariasis
ascaridiasis
Ascending cholangitis
Ascites
Aseptic meningitis
Asherman's syndrome
Aspartylglucosaminuria
Asperger syndrome
Aspergilloma
Aspergillosis
Asphyxia
asphyxia neonatorum
Asphyxiating thoracic dysplasia
Aspiration pneumonia
Aspirin exacerbated respiratory disease
Aspirin-induced asthma
Asplenia
Asplenia with cardiovascular anomalies
asthenopia
asthma
Asthma attack
Astigmatism
Astrocytoma
Astrogliosis
Asymptomatic inflammatory prostatitis
asymptomatic neurosyphilis
Asystole
Ataxia
ataxia telangiectasia
Ataxia-telangiectasia
Ataxic respiration
Atelectasis
Atelosteogenesis, type II
Atheroma
Atherosclerosis
Athetoid cerebral palsy
Athetosis
Athlete's foot
Athletic heart syndrome
Athletic pubalgia
Atlanta race riot
Atopic dermatitis
Atopic dermatitis (eczema)
Atopy
ATR-16 syndrome
Atransferrinemia
Atrial fibrillation
Atrial flutter
atrial heart septal defect
Atrial septal defect
Atrial tachycardia
Atrioventricular block
Atrioventricular canal defect
Atrioventricular nodal reentry tachycardia (AVNRT)
Atrioventricular reentrant tachycardia
Atrioventricular septal defect
Atrophic gastritis
atrophic muscular disease
atrophic rhinitis
Atrophic vaginitis
Attention deficit hyperactivity disorder
Attention deficit hyperactivity disorder predominantly inattentive
Attention-deficit/hyperactivity disorder (ADHD) in children
atypical chronic myeloid leukemia
Atypical depression
Atypical ductal hyperplasia
Atypical facial pain
Atypical hyperplasia of the breast
Atypical pneumonia
Atypical teratoid rhabdoid tumor
Atypical trigeminal neuralgia
Auditory hallucination
Auditory processing disorder
auditory system disease
auricular cancer
Autism
Autism spectrum
Autism spectrum disorder
autistic disorder
Autoimmune autonomic ganglionopathy
Autoimmune disease
autoimmune disease of the nervous system
Autoimmune encephalitis
Autoimmune hemolytic anemia
Autoimmune hepatitis
Autoimmune hypophysitis
Autoimmune inner ear disease
Autoimmune lymphoproliferative syndrome
Autoimmune neutropenia
Autoimmune oophoritis
Autoimmune pancreatitis
Autoimmune polyendocrine syndrome
Autoimmune polyendocrine syndrome type 1
Autoimmune polyendocrine syndrome type 2
autoimmune thrombocytopenic purpura
Autoimmune thyroiditis
Autoimmunity
Autonomic dysreflexia
Autonomic neuropathy
Autosomal dominant cerebellar ataxia
Autosomal dominant nocturnal frontal lobe epilepsy
Autosomal dominant polycystic kidney disease
Autosomal recessive polycystic kidney disease
autosomal recessive pseudohypoaldosteronism type 1
Autotopagnosia
AV nodal reentrant tachycardia
Avascular necrosis
avian influenza
Avoidant personality disorder
Avoidant/restrictive food intake disorder
Axenfeld syndrome
Azotemia
B- and T-cell mixed leukemia
B-cell lymphoma
Baastrup's sign
Babesiosis
Baby acne
Baby colic
Bacillary angiomatosis
Bacillary dysentery
Back pain
Bacteremia
Bacterial blight of cotton
Bacterial cold water disease
bacterial conjunctivitis
bacterial infectious disease
bacterial meningitis
Bacterial pneumonia
Bacterial vaginosis
Bacteriuria
Bad breath
Bagassosis
Bags under eyes
Baker's cyst
Balance disorder
Balance problems
Balanitis
Balantidiasis
Balkan endemic nephropathy
Balkan nephropathy
Baller–Gerold syndrome
Balo concentric sclerosis
Band keratopathy
Bangstad syndrome
Bankart lesion
Bannayan–Riley–Ruvalcaba syndrome
Barakat syndrome
Bardet-Biedl syndrome
Bardet–Biedl syndrome
Bare lymphocyte syndrome
Baritosis
Barotrauma
Barraquer–Simons syndrome
Barre-Lieou syndrome
Barrett's esophagus
Barth syndrome
Bartholin's cyst
Bartonellosis
Bartter disease
Bartter syndrome
basal cell carcinoma
basal ganglia cerebrovascular disease
Basal ganglia disease
Basal-cell carcinoma
Basilar skull fracture
basophil adenoma
Basophilia
basosquamous carcinoma
Batten disease
Becker's muscular dystrophy
Beckwith-Wiedemann syndrome
Beckwith–Wiedemann syndrome
Bed bug infestation
Bed-wetting
Bedbugs
Bedsores (pressure ulcers)
Bee sting
Beech bark disease
Behr syndrome
Behçet's disease
bejel
Bell's palsy
Benedikt syndrome
benign breast phyllodes tumor
benign ependymoma
benign epilepsy with centrotemporal spikes
Benign familial neonatal seizures
Benign fasciculation syndrome
Benign fibrous histiocytoma
benign fibrous mesothelioma
benign mesothelioma
Benign paroxysmal positional vertigo
Benign paroxysmal positional vertigo (BPPV)
Benign prostatic hyperplasia
Benign prostatic hyperplasia (BPH)
Benign tumor
BENTA disease
Benzodiazepine dependence
Benzodiazepine overdose
Benzodiazepine use disorder
Benzodiazepine withdrawal syndrome
Berdon syndrome
beriberi
Bernard-Soulier syndrome
Bernard–Soulier syndrome
Berylliosis
Beta thalassemia
Beta-ketothiolase deficiency
Beta-mannosidosis
Bethlem myopathy
Bezold's abscess
Bickerstaff brainstem encephalitis
Bicornuate uterus
Bicuspid aortic valve
Bietti's crystalline dystrophy
Bilateral frontoparietal polymicrogyria
Bilateral hilar lymphadenopathy
Bile acid malabsorption
bile duct adenoma
bile duct cancer
bile duct disease
bile reflux
Biliary atresia
Biliary colic
Biliary dyskinesia
Biliary fistula
Biliary reflux
Biliary sludge
biliary tract cancer
biliary tract disease
Binge drinking
Binge-eating disorder
Binswanger's disease
Biotin deficiency
Biotinidase deficiency
Bipolar disorder
Bipolar disorder in children
Bipolar disorder not otherwise specified
Bipolar II disorder
Bird fancier's lung
Bird flu (avian influenza)
Birdshot chorioretinopathy
Birth defect
Birth trauma (physical)
Birt–Hogg–Dubé syndrome
Bisphosphonate-associated osteonecrosis of the jaw
Bitemporal hemianopsia
Bitot's spots
Bitter pit
Black hairy tongue
Black sigatoka
Blackwater fever
bladder calculus
Bladder cancer
bladder disease
Bladder exstrophy
Bladder sphincter dyssynergia
Bladder stone
Bladder stones
Blastic NK cell lymphoma
Blastic plasmacytoid dendritic cell neoplasm
Blastocystis hominis infection
Blastocystosis
Blastomycosis
Bleeding
Bleeding diathesis
Blepharitis
Blepharochalasis
Blepharophimosis
Blepharospasm
Blind loop syndrome
Blindsight
Blister
Blister beetle dermatitis
Bloch-Sulzberger syndrome
Blocked tear duct
blood coagulation disease
blood group incompatibility
Blood in urine (hematuria)
blood platelet disease
blood protein disease
Bloom syndrome
Blount's disease
Blue baby syndrome
blue color blindness
Blue diaper syndrome
Blue rubber bleb nevus syndrome
Bluetongue disease
Blunt trauma
Bobble-head doll syndrome
Body dysmorphic disorder
Body lice
Body odor
Boehm syndrome
Boerhaave syndrome
Boil
Boils and carbuncles
bone cancer
Bone disease
Bone fracture
bone giant cell tumor
bone inflammation disease
bone marrow cancer
bone marrow disease
Bone metastasis
Bone pain
bone resorption disease
Bone spurs
Bone tumor
Borderline leprosy
Borderline personality disorder
borna disease
Bornholm disease
Boron deficiency (plant disorder)
Botulism
Boutonneuse fever
Bovine malignant catarrhal fever
Bovine spongiform encephalopathy
Bowel infarction
Bowel obstruction
Bowen's disease
Boxer's fracture
Brachial plexus injury
brachial plexus neuropathy
Bradycardia
Brain abscess
Brain aneurysm
Brain AVM
brain cancer
brain disease
brain edema
Brain herniation
brain infarction
Brain ischemia
Brain metastases
Brain metastasis
brain stem cancer
brain stem infarction
Brain tumor
Brainstem glioma
branch retinal artery occlusion
Branch retinal vein occlusion
Branchial cleft cyst
Branchio-oculo-facial syndrome
branchiootorenal syndrome
Braxton Hicks contractions
Brazilian purpuric fever
Breast cancer
Breast cyst
Breast cysts
Breast disease
breast ductal carcinoma
breast fibroadenoma
breast fibrocystic disease
Breast hematoma
Breast hypertrophy
Breast lump
Breast pain
Breech birth
Brenner tumour
Brief reactive psychosis
Brill-Zinsser disease
Brodie abscess
Brody myopathy
Broken ankle/broken foot
Broken arm
Broken collarbone
Broken heart syndrome
Broken leg
Broken nose
Broken ribs
Broken toe
Broken wrist/broken hand
Bromism
bronchial disease
bronchial neoplasm
Bronchiectasis
Bronchiolitis
Bronchiolitis obliterans
bronchiolo-alveolar adenocarcinoma
Bronchitis
Bronchoconstriction
Bronchomalacia
bronchopneumonia
Bronchopulmonary dysplasia
Bronchospasm
bronchus carcinoma
Brown tumor
Brown Willy effect
Brown's syndrome
Brown's tendon sheath syndrome
Brown-Séquard syndrome
Brown–Vialetto–Van Laere syndrome
Brucella abortus brucellosis
Brucellosis
Brugada syndrome
Bruise
Brunner syndrome
Bruns apraxia
Bruxism
Bruxism (teeth grinding)
Bubonic plague
Buccal exostosis
Budd-Chiari syndrome
Budd–Chiari syndrome
Buerger's disease
Bulbar palsy
bulbar polio
Bulimia nervosa
Bullous keratopathy
Bullous pemphigoid
Bullwhip effect
Bundle branch block
Bunion
Bunions
Buphthalmos
Burkitt lymphoma
Burn
Burning feet syndrome
Burning mouth syndrome
Burns
Bursitis
Buruli ulcer
Buruli ulcer disease
Buschke–Ollendorff syndrome
Byssinosis
Börjeson-Forssman-Lehmann syndrome
C. difficile infection
Cachexia
Cadang-cadang
CADASIL
Caffey disease
Café au lait spot
Calcaneal fracture
Calcaneal spur
Calcific tendinitis
Calcification
Calcifying odontogenic cyst
Calcinosis
Calcinosis cutis
Calciphylaxis
Calcium channel blocker toxicity
Calcium deficiency (plant disorder)
calcium metabolism disease
Calculus (medicine)
Callus
Camelpox
Campomelic dysplasia
Camptodactyly
Campylobacteriosis
Camurati-Engelmann disease
Camurati–Engelmann disease
Canavan disease
Cancer
Cancer of unknown primary origin
Candida hypersensitivity
Candidiasis
Canine degenerative myelopathy
Canine epileptoid cramping syndrome
Canker sore
Cannabinoid hyperemesis syndrome
cannabis dependence
Cannabis use disorder
Capacitor plague
Capgras delusion
Capgras syndrome
Capillary hemangioma
Capillary leak syndrome
Caplan's syndrome
Caput succedaneum
Carbamoyl phosphate synthetase I deficiency
carbamoyl phosphate synthetase I deficiency disease
carbohydrate metabolic disorder
Carbon monoxide poisoning
Carbuncle
Carcinoid
Carcinoid syndrome
Carcinoid tumors
Carcinoma
Carcinosarcoma
Cardiac arrest
Cardiac fibroma
Cardiac myxoma
Cardiac tamponade
cardiac tuberculosis
Cardiofaciocutaneous syndrome
Cardiogenic shock
Cardiomegaly
Cardiomyopathy
cardiovascular system disease
Carney complex
Carnitine palmitoyltransferase I deficiency
Carnitine palmitoyltransferase II deficiency
Carnitine-acylcarnitine translocase deficiency
Carnosinemia
Caroli disease
Carotenosis
carotid artery disease
Carotid artery dissection
Carotid artery stenosis
carotid artery thrombosis
carotid stenosis
Carotid-cavernous fistula
Carpal tunnel syndrome
Carpenter syndrome
Carrion's disease
cartilage disease
Cartilage–hair hypoplasia
Caspase-8 deficiency
Cassava brown streak virus disease
Castleman disease
Castleman's disease
Cat eye syndrome
Cat-scratch disease
Catalepsy
Catamenial pneumothorax
Cataplexy
Cataract
Cataracts
Catatonia
Catecholaminergic polymorphic ventricular tachycardia
Catel–Manzke syndrome
Cauda equina syndrome
Caudal regression syndrome
Cauliflower ear
causalgia
Cavernous hemangioma
Cavernous liver haemangioma
Cavernous malformations
Cavernous sinus thrombosis
Cavities/tooth decay
cecal benign neoplasm
cecal disease
celiac disease
Cellulite
Cellulitis
Central cord syndrome
Central core disease
central core myopathy
Central diabetes insipidus
Central facial palsy
central nervous system cancer
Central nervous system cavernous hemangioma
Central nervous system cyst
Central nervous system disease
central nervous system origin vertigo
central nervous system tuberculosis
Central nervous system viral disease
Central neurocytoma
Central neurogenic hyperventilation
Central pain syndrome
Central pontine myelinolysis
Central retinal artery occlusion
Central serous retinopathy
Central sleep apnea
Centronuclear myopathy
Cephalic presentation
Cephalohematoma
Cephalopelvic disproportion
Cerebellar ataxia
Cerebellar cognitive affective syndrome
cerebellar disease
Cerebellar hypoplasia
Cerebellar hypoplasia (non-human)
Cerebellopontine angle syndrome
cerebellum cancer
Cerebral amyloid angiopathy
cerebral arterial disease
Cerebral arteriovenous malformation
cerebral atherosclerosis
Cerebral contusion
Cerebral edema
Cerebral hypoxia
Cerebral infarction
Cerebral laceration
Cerebral palsy
Cerebral salt-wasting syndrome
Cerebral softening
Cerebral vasculitis
Cerebral venous sinus thrombosis
cerebral ventricle cancer
Cerebritis
Cerebroretinal microangiopathy with calcifications and cysts
Cerebrotendineous xanthomatosis
cerebrotendinous xanthomatosis
Cerebrovascular disease
Cervical agenesis
Cervical cancer
Cervical dystonia
Cervical fracture
Cervical incompetence
Cervical intraepithelial neoplasia
Cervical polyp
Cervical pregnancy
Cervical spine disorder
Cervical spondylosis
Cervical weakness
Cervicitis
cervix disease
cervix erosion
cervix uteri carcinoma in situ
Cetacean stranding
Chagas disease
Chalazion
Chance fracture
Chancroid
Chandler syndrome
Charcot-Marie-Tooth disease
Charcot–Marie–Tooth disease
CHARGE syndrome
Charley horse
Chediak-Higashi syndrome
Chemical burn
Chemical pneumonitis
Chemo brain
Chemotherapy-induced acral erythema
Cherry hemangioma
Cherubism
Chest pain
Chiari malformation
Chickenpox
Chikungunya
Chilaiditi syndrome
Chilblains
Child abuse
CHILD syndrome
Childbirth
Childhood absence epilepsy
Childhood apraxia of speech
Childhood arthritis
Childhood asthma
Childhood cancer
Childhood disintegrative disorder
Childhood obesity
Childhood schizophrenia
Childlessness
Chlamydia infection
Chlamydia trachomatis
Chloracne
Chlorine gas poisoning
Choanal atresia
Choke (horse)
Choking
Cholangiocarcinoma
Cholangiocarcinoma (bile duct cancer)
cholangitis
Cholecystitis
cholecystolithiasis
choledochal cyst
Choledochal cysts
choledocholithiasis
Cholera
Cholestasis
Cholestasis of pregnancy
Cholesteatoma
Cholesterol embolism
cholesterol ester storage disease
choline deficiency disease
Cholinergic urticaria
Chondroblastoma
Chondrocalcinosis
Chondrodysplasia punctata
Chondrodystrophy
Chondroma
Chondromalacia patellae
Chondrosarcoma
Chorangioma
Chorangiosis
Chordee
Chordoma
Chorea
Chorea acanthocytosis
Chorea gravidarum
Chorioamnionitis
Choriocarcinoma
chorioretinitis
choroid cancer
choroid plexus cancer
Choroid plexus carcinoma
Choroid plexus papilloma
Choroideremia
choroiditis
Chromium deficiency
Chromoblastomycosis
chromophobe adenoma
chromosome 17p13.1 deletion syndrome
Chromosome 5q deletion syndrome
Chronic allograft nephropathy
Chronic atrophic rhinitis
Chronic bacterial prostatitis
Chronic cerebrospinal venous insufficiency
Chronic cough
Chronic daily headaches
Chronic diarrhea of infancy
Chronic exertional compartment syndrome
Chronic fatigue syndrome
Chronic gastritis
Chronic granulomatous disease
Chronic hives
chronic inflammatory demyelinating polyneuritis
Chronic inflammatory demyelinating polyneuropathy
Chronic kidney disease
Chronic lymphocytic leukemia
chronic monocytic leukemia
Chronic mountain sickness
Chronic mucocutaneous candidiasis
Chronic myelogenous leukemia
chronic myeloid leukemia
Chronic myelomonocytic leukemia
Chronic neutrophilic leukemia
Chronic obstructive pulmonary disease
Chronic pain
Chronic pancreatitis
Chronic paroxysmal hemicrania
Chronic pelvic pain in women
Chronic periodontitis
Chronic progressive external ophthalmoplegia
Chronic prostatitis/chronic pelvic pain syndrome
Chronic pulmonary aspergillosis
Chronic recurrent multifocal osteomyelitis
Chronic sinusitis
chronic tic disorder
Chronic traumatic encephalopathy
Chronic venous insufficiency
Chronic wasting disease
Chrysanthemum white rust
Churg-Strauss syndrome
Chylomicron retention disease
Chylothorax
Chyluria
Chédiak–Higashi syndrome
Cicatricial pemphigoid
Ciguatera
Ciguatera fish poisoning
Circulatory collapse
Cirrhosis
Citrullinemia
Citrus black spot
Citrus greening disease
Claudication
Clavicle fracture
clear cell adenocarcinoma
clear cell adenofibroma
clear cell sarcoma
Clear-cell sarcoma
cleft lip
Cleft lip and cleft palate
cleft palate
Cleidocranial dysostosis
Clitoromegaly
Closed head injury
Closed-head injury
Clostridial necrotizing enteritis
Clostridium difficile colitis
Clostridium difficile infection
Clouston syndrome
Clouston's hidrotic ectodermal dysplasia
Clubfoot
Cluster headache
Clutch (sports)
COACH syndrome
coagulation protein disease
Coagulopathy
Coalworker's pneumoconiosis
Coarctation of the aorta
Coats disease
Coats' disease
Cobb syndrome
Cocaine dependence
Cocaine intoxication
Coccidioidomycosis
coccidiosis
Coccydynia
cochlear disease
Cockayne syndrome
Coeliac disease
Coffin-Lowry syndrome
Coffin–Lowry syndrome
Cogan syndrome
cognitive disorder
Cohen syndrome
Cold agglutinin disease
Cold sore
Cold urticaria
Colic
Colitis
collagen disease
Collagenous colitis
Colles' fracture
Collie eye anomaly
Colloid cyst
Coloboma
Coloboma of optic nerve
colon cancer
Colon polyps
colonic disease
colonic pseudo-obstruction
Colony collapse disorder
Color blindness
Colorado tick fever
Colorectal cancer
Columnaris
Coma
combat disorder
Combat stress reaction
Combined hyperlipidemia
common bile duct disease
common bile duct neoplasm
Common cold
Common cold in babies
Common root rot (barley)
Common root rot (wheat)
Common variable immunodeficiency
Common warts
Commotio cordis
Communication disorder
Compartment syndrome
Complement deficiency
complex partial epilepsy
Complex partial status epilepticus
Complex regional pain syndrome
Complicated grief
composite lymphoma
Compound heterozygosity
Compulsive gambling
Compulsive hoarding
Compulsive sexual behavior
Concussion
Conduct disorder
Conduction aphasia
Conductive hearing loss
Cone dystrophy
Confabulation
Congenital absence of the vas deferens
Congenital adrenal hyperplasia
Congenital adrenal hyperplasia due to 11β-hydroxylase deficiency
Congenital afibrinogenemia
Congenital amegakaryocytic thrombocytopenia
Congenital amputation
Congenital cataract
Congenital chloride diarrhea
Congenital contractural arachnodactyly
Congenital cytomegalovirus infection
Congenital diaphragmatic hernia
Congenital disorder of glycosylation
Congenital distal spinal muscular atrophy
Congenital dyserythropoietic anemia
Congenital epulis
Congenital fourth nerve palsy
Congenital generalized lipodystrophy
Congenital heart defect
Congenital heart defects in children
congenital heart disease
Congenital heart disease in adults
Congenital hemolytic anemia
Congenital hepatic fibrosis
Congenital hypothyroidism
Congenital ichthyosiform erythroderma
Congenital insensitivity to pain
Congenital insensitivity to pain with anhidrosis
Congenital iodine deficiency syndrome
Congenital melanocytic nevus
Congenital mirror movement disorder
Congenital mitral valve anomalies
Congenital muscular dystrophy
Congenital myasthenic syndrome
Congenital myopathies
Congenital myopathy
Congenital nephrotic syndrome
congenital nonspherocytic hemolytic anemia
congenital nystagmus
Congenital pulmonary airway malformation
Congenital rubella syndrome
Congenital self-healing reticulohistiocytosis
Congenital stenosis of vena cava
Congenital syphilis
congenital toxoplasmosis
congestive heart failure
Congestive hepatopathy
Conjoined twins
Conjugate gaze palsy
conjunctival cancer
conjunctival disease
Conjunctival squamous cell carcinoma
Conjunctivitis
Conjunctivochalasis
Conn's syndrome
connective tissue benign neoplasm
connective tissue cancer
Connective tissue disease
Conradi–Hünermann syndrome
Constipation
Constipation in children
Constrictive pericarditis
Contact dermatitis
Contact granuloma
contagious pustular dermatitis
Control reversal
Convergence insufficiency
Conversion disorder
Convulsion
COPD
Cor pulmonale
Coral bleaching
Cord colitis syndrome
Corn (medicine)
Cornea verticillata
Corneal abrasion
corneal disease
corneal edema
corneal granular dystrophy
Corneal hydrops
Corneal neovascularization
Corneal ulcer
Corneal ulcers in animals
Corneal-cerebellar syndrome
Cornelia de Lange Syndrome
Corns and calluses
coronary aneurysm
Coronary artery aneurysm
Coronary artery disease
coronary artery vasospasm
coronary restenosis
coronary stenosis
Coronary thrombosis
Corpus luteum cyst
Cortical blindness
Cortical deafness
Corticobasal degeneration
Costello syndrome
Costochondritis
Cotard delusion
Cotton fever
Cough headaches
Cowden disease
Cowden syndrome
Cowpox
Cracked tooth syndrome
Cradle cap
cranial nerve palsy
Craniodiaphyseal dysplasia
Craniometaphyseal dysplasia
Craniopharyngioma
Craniosynostosis
Craniotabes
Creatine transporter defect
CREST syndrome
Cretinism
Creutzfeldt-Jakob disease
Creutzfeldt–Jakob disease
Cri du chat
Cri du chat syndrome
Cri-Du-Chat syndrome
Crigler-Najjar syndrome
Crigler–Najjar syndrome
Crimean-Congo hemorrhagic fever
Crimean–Congo hemorrhagic fever
Critical illness polyneuropathy
Crohn's colitis
Crohn's disease
Cronkhite–Canada syndrome
Croup
Crouzon syndrome
Cryofibrinogenemia
Cryoglobulinemia
Cryopyrin-associated periodic syndrome
Cryptococcal meningitis
Cryptococcosis
Cryptogenic organizing pneumonia
Cryptomenorrhea
Cryptorchidism
Cryptosporidiosis
Cryptosporidium infection
Crystal arthropathy
Cushing syndrome
Cushing ulcer
Cushing's disease
Cushing's syndrome
cutaneous candidiasis
Cutaneous horn
Cutaneous larva migrans
Cutaneous leishmaniasis
cutaneous mastocytosis
cutaneous Paget's disease
cutaneous porphyria
Cutaneous small-vessel vasculitis
Cutaneous T cell lymphoma
Cutis laxa
Cutis marmorata telangiectatica congenita
Cyanide poisoning
Cyclaneusma needle cast
Cyclic vomiting syndrome
Cyclopia
Cyclospora infection
Cyclosporiasis
Cyclothymia
Cyclothymia (cyclothymic disorder)
cyclothymic disorder
Cystadenocarcinoma
Cystadenoma
Cystic fibrosis
Cystic fibrosis-related diabetes
Cystic hygroma
Cystic kidney disease
cystic lymphangioma
Cystic nephroma
Cystic tumour of the atrioventricular nodal region
Cysticercosis
Cystinosis
Cystinuria
cystitis
Cystocele
cystoid macular edema
cystoisosporiasis
Cysts of the jaws
cytochrome-c oxidase deficiency disease
Cytokine release syndrome
Cytomegalic inclusion body disease
Cytomegalovirus (CMV) infection
Cytomegalovirus colitis
Cytomegalovirus retinitis
D-bifunctional protein deficiency
Da Costa's syndrome
Dacryoadenitis
Dacryocystitis
Damp (structural)
Damping off
Dandruff
Dandy-Walker syndrome
Dandy–Walker syndrome
Danon disease
Darier's disease
De Quervain syndrome
De Quervain's tenosynovitis
De Quervain's thyroiditis
Decompression sickness
decubitus ulcer
Deep vein thrombosis
Deficiency of the interleukin-1–receptor antagonist
Deformity
Degenerative disc disease
degenerative myopia
Degos disease
Dehydration
Dejerine–Roussy syndrome
Dejerine–Sottas disease
Delayed ejaculation
Delayed onset muscle soreness
Delayed puberty
Delayed sleep phase disorder
Delirium
Delirium tremens
Delta-beta thalassemia
Delusional disorder
Delusional parasitosis
Dementia
Dementia praecox
Dementia with Lewy bodies
Demodicosis
Demyelinating disease
Denervation
dengue disease
Dengue fever
dengue hemorrhagic fever
Dent's disease
Dental abscess
dental caries
dental enamel hypoplasia
Dental fluorosis
dental pulp calcification
dental pulp disease
dental pulp necrosis
Dentatorubral-pallidoluysian atrophy
Dentin dysplasia
Dentin hypersensitivity
dentin sensitivity
Dentinogenesis imperfecta
denture stomatitis
Denture-related stomatitis
Denys-Drash syndrome
Denys–Drash syndrome
Dependent personality disorder
Depersonalization disorder
Depersonalization-derealization disorder
Depression (major depressive disorder)
Dermatitis
Dermatitis herpetiformis
Dermatochalasis
Dermatofibrosarcoma protuberans
Dermatographia
Dermatographic urticaria
Dermatomycosis
Dermatomyositis
Dermatophytosis
Dermoid cyst
Desmin-related myofibrillar myopathy
Desquamative gingivitis
Developmental coordination disorder
Developmental disability
Developmental disorder
Deviated septum
dextro-Transposition of the great arteries
Dextrocardia
Dhat syndrome
Diabetes
Diabetes insipidus
Diabetes mellitus
Diabetes mellitus and deafness
Diabetes mellitus type 1
Diabetes mellitus type 2
Diabetic angiopathy
diabetic autonomic neuropathy
Diabetic cardiomyopathy
Diabetic coma
Diabetic dermopathy
Diabetic foot ulcer
Diabetic hyperosmolar syndrome
Diabetic hypoglycemia
Diabetic ketoacidosis
Diabetic nephropathy
Diabetic neuropathy
Diabetic retinopathy
Diamond-Blackfan anemia
Diamond–Blackfan anemia
diaper rash
diaphragmatic eventration
Diaphragmatic rupture
Diarrhea
Diastasis recti
Diastasis symphysis pubis
Diastematomyelia
Diastolic heart failure
Diastrophic dysplasia
Dicarboxylic aminoaciduria
dicrocoeliasis
Dientamoebiasis
Diesel engine runaway
Diet Coke and Mentos eruption
Dieulafoy's lesion
Diffuse alveolar damage
Diffuse axonal injury
Diffuse esophageal spasm
Diffuse idiopathic skeletal hyperostosis
Diffuse idiopathic skeletal hyperostosis (DISH)
Diffuse lamellar keratitis
Diffuse large B-cell lymphoma
Diffuse myelinoclastic sclerosis
Diffuse panbronchiolitis
diffuse scleroderma
Diffusion of responsibility
DiGeorge syndrome
DiGeorge syndrome (22q11.2 deletion syndrome)
Digoxin toxicity
Dilated cardiomyopathy
Diphallia
Diphtheria
Diphyllobothriasis
Diplopia
Directed attention fatigue
Dirofilariasis
Dirty thunderstorm
Discitis
discrete subaortic stenosis
Disease
Disease in ornamental fish
disease of mental health
disease of metabolism
Disinflation
Dislocated elbow
Dislocated shoulder
Dislocation
Dislocation of jaw
Disorder of written expression
Disorganized schizophrenia
Disseminated intravascular coagulation
Dissociative disorder
Dissociative disorders
Dissociative identity disorder
Distal intestinal obstruction syndrome
Distal muscular dystrophy
Distal radius fracture
Distal renal tubular acidosis
Distal spinal muscular atrophy type 1
Distributive shock
Diurnal enuresis
Diverticulitis
diverticulitis of colon
Diverticulosis
Dizziness
Domestic violence
Donnai–Barrow syndrome
Donohue syndrome
DOOR syndrome
Dopamine beta hydroxylase deficiency
Dopamine dysregulation syndrome
Double aortic arch
Double outlet right ventricle
Double uterus
Double-outlet right ventricle
Down syndrome
Dracunculiasis
Dravet syndrome
Dressler syndrome
Dressler's syndrome
Drooling
Drowning
Drug addiction (substance use disorder)
Drug allergy
Drug overdose
drug psychosis
Drug-induced angioedema
drug-induced hepatitis
Drug-induced lupus erythematosus
Drug-induced pigmentation
Drusen
Dry eye syndrome
Dry eyes
Dry mouth
Dry skin
Dry socket
Dual diagnosis
Duane retraction syndrome
Duane syndrome
Duane-radial ray syndrome
Dubin-Johnson syndrome
Dubin–Johnson syndrome
Dubowitz syndrome
Duchenne muscular dystrophy
Duct ectasia of breast
Ductal carcinoma in situ
Ductal carcinoma in situ (DCIS)
Dukes' disease
Dumping syndrome
Duodenal atresia
Duodenal cancer
duodenal disease
duodenal obstruction
Duodenitis
duodenogastric reflux
duodenum cancer
Dupuytren's contracture
Dural arteriovenous fistulas
Dust mite allergy
Dust storm
Dwarfism
Dysarthria
Dysautonomia
Dyscalculia
Dyschronometria
Dysembryoplastic neuroepithelial tumour
Dysentery
dysgammaglobulinemia
Dysgerminoma
Dysgraphia
Dyshidrosis
Dyskeratosis congenita
dyskinesia of esophagus
Dyslexia
Dysmelia
Dysmenorrhea
Dysmetria
Dysostosis
Dyspareunia
Dysphagia
Dysplastic nevus syndrome
Dysthymia
dysthymic disorder
Dystonia
E. coli
Eagle syndrome
Eales disease
Ear infection (middle ear)
Ear pain
early myoclonic encephalopathy
Earwax blockage
EAST syndrome
Eastern equine encephalitis
Eating disorder
Eating disorder not otherwise specified
Eating disorders
Ebola hemorrhagic fever
Ebola virus and Marburg virus
Ebola virus disease
Ebstein's anomaly
Ecchymosis
eccrine acrospiroma
eccrine porocarcinoma
Echinococcosis
echinostomiasis
Echolalia
Eclampsia
Economic inequality
Ecthyma
Ecthyma gangrenosum
Ectodermal dysplasia
Ectopic pregnancy
Ectrodactyly
Ectrodactyly–ectodermal dysplasia–cleft syndrome
Ectropion
Eczema herpeticum
Eczema vaccinatum
Edema
Edentulism
Edwards syndrome
Effects of long-term benzodiazepine use
Egg allergy
Ego-dystonic sexual orientation
Ehlers-Danlos syndrome
Ehlers–Danlos syndromes
Ehrlich tumor carcinoma
Ehrlichiosis
Ehrlichiosis (canine)
Ehrlichiosis ewingii infection
Eisenmenger syndrome
Eisenmenger's syndrome
Ejaculatory duct obstruction
Elastofibroma dorsi
Elbow dysplasia
elephantiasis
Elevated blood pressure
Ellis-Van Creveld syndrome
Ellis–van Creveld syndrome
Embryonal carcinoma
Embryonal rhabdomyosarcoma
Embryonal tumors
Emery-Dreifuss muscular dystrophy
Emery–Dreifuss muscular dystrophy
Emphysema
emphysematous cholecystitis
Emphysematous cystitis
Empty sella syndrome
Enamel hypoplasia
Encephalitis
Encephalitis lethargica
encephalitozoonosis
Encephalocele
encephalomalacia
encephalomyelitis
Encephalopathy
Enchondroma
Encopresis
End-stage renal disease
endemic goiter
Endocardial fibroelastosis
Endocarditis
endocrine gland cancer
Endodermal sinus tumor
endogenous depression
Endolymphatic hydrops
Endometrial cancer
Endometrial hyperplasia
Endometrial intraepithelial neoplasia
Endometrial polyp
endometrial stromal sarcoma
endometrial stromal tumor
Endometriosis
endometriosis of uterus
Endometritis
endomyocardial fibrosis
Endophthalmitis
Endosalpingiosis
Enlarged breasts in men (gynecomastia)
Enlarged heart
Enlarged liver
Enlarged spleen (splenomegaly)
Enlarged vestibular aqueduct
Enolase deficiency
Enophthalmos
Enteric duplication cyst
Enteric neuropathy
Enteritis
enterobiasis
Enterocele
Enterocolitis
Enterotoxigenic Escherichia coli
Enthesopathy
Entropion
Enuresis
Environmental enteropathy
Eosinophilia
eosinophilia-myalgia syndrome
Eosinophilic cellulitis
Eosinophilic esophagitis
Eosinophilic fasciitis
Eosinophilic folliculitis
Eosinophilic gastroenteritis
Eosinophilic granulomatosis with polyangiitis
Eosinophilic pneumonia
Eosinophilic ulcer of the oral mucosa
Ependymoma
Epidemic typhus
Epidermodysplasia verruciformis
Epidermoid cyst
Epidermoid cysts
Epidermolysis bullosa
Epidermolysis bullosa acquisita
Epidermolysis bullosa dystrophica
Epidermolysis bullosa simplex
Epidermolytic hyperkeratosis
Epididymitis
epidural abscess
Epidural hematoma
epidural neoplasm
Epiglottitis
Epilepsia partialis continua
Epilepsy
epilepsy with generalized tonic-clonic seizures
Epilepsy-intellectual disability in females
Epileptic seizure
Epileptic spasms
Epiretinal membrane
Episcleritis
Episodic ataxia
Epithelial basement membrane dystrophy
Epithelial-myoepithelial carcinoma
Epithelioid sarcoma
Epizootic lymphangitis
Epulis fissuratum
Equine exertional rhabdomyolysis
Equine influenza
Equine polysaccharide storage myopathy
Equine protozoal myeloencephalitis
Equine recurrent uveitis
Equine shivers
Equine viral arteritis
Erb's palsy
Erdheim-Chester disease
Erdheim–Chester disease
Erectile dysfunction
Erethism
Ergotism
Erotomania
Eruptive vellus hair cyst
Erysipelas
Erysipeloid
Erythema
Erythema ab igne
Erythema annulare centrifugum
Erythema chronicum migrans
erythema infectiosum
Erythema marginatum
Erythema migrans
Erythema multiforme
Erythema nodosum
Erythema toxicum neonatorum
Erythrasma
Erythroderma
Erythrokeratodermia variabilis
Erythromelalgia
Erythroplakia
Erythropoietic porphyria
Erythropoietic protoporphyria
Esophageal achalasia
Esophageal atresia
Esophageal cancer
Esophageal candidiasis
Esophageal disease
esophageal diverticulosis
Esophageal food bolus obstruction
Esophageal motility disorder
Esophageal spasms
Esophageal stricture
Esophageal varices
Esophageal web
Esophagitis
Essential thrombocythemia
Essential thrombocytosis
Essential tremor
Esthesioneuroblastoma
ethmoid sinusitis
Ethylene glycol poisoning
Ethylmalonic encephalopathy
Eumycetoma
eumycotic mycetoma
eunuchism
Euthyroid sick syndrome
Evans syndrome
Ewing sarcoma
Ewing's sarcoma
Exanthem
exanthema subitum
Excessive daytime sleepiness
Excoriation disorder
Exercise headaches
Exercise intolerance
Exercise-induced asthma
Exercise-induced bronchoconstriction
exfoliation syndrome
exhibitionism
Exocrine pancreatic insufficiency
Exophoria
Exophthalmos
Exostosis
Exotropia
Explosion
Expressive aphasia
External compression headaches
Extinction event
extracutaneous mastocytoma
extrahepatic cholestasis
Extramammary Paget's disease
Extrapyramidal symptoms
extrinsic allergic alveolitis
eye disease
Eye floaters
Eye melanoma
Eye neoplasm
Eye strain
eyelid disease
eyelid neoplasm
Eyestrain
Fabry disease
facial dermatosis
facial hemiatrophy
Facial nerve paralysis
Facial trauma
Facioscapulohumeral muscular dystrophy
Factitious disorder
Factitious disorder imposed on self
factor V deficiency
Factor V Leiden
factor VII deficiency
factor VIII deficiency
factor X deficiency
factor XI deficiency
factor XII deficiency
Factor XIII deficiency
Fahr's syndrome
Failed back syndrome
Fallopian tube cancer
fallopian tube carcinoma
fallopian tube disease
Fallopian tube obstruction
Falls in older adults
False pregnancy
Familial adenomatous polyposis
Familial atrial fibrillation
Familial dysautonomia
Familial dysbetalipoproteinemia
Familial exudative vitreoretinopathy
Familial hemiplegic migraine
Familial hypercholesterolemia
familial hyperlipidemia
Familial hypocalciuric hypercalcemia
Familial Mediterranean fever
Familial partial lipodystrophy
familial periodic paralysis
familial retinoblastoma
Fanconi anemia
Fanconi syndrome
Far-sightedness
Farber disease
Farber lipogranulomatosis
Farmer's lung
Farsightedness
Fasciitis
fascioliasis
fascioloidiasis
Fasciolopsiasis
Fasciolosis
Fat embolism
Fatal familial insomnia
Fatal insomnia
Fatty liver
fatty liver disease
Fatty-acid metabolism disorder
Favid
favism
Favus
Fazio–Londe disease
Feather-plucking
Febrile neutrophilic dermatosis
Febrile seizure
Fecal impaction
Fecal incontinence
Fecalith
Feline asthma
Felty's syndrome
Female athlete triad
Female infertility
female reproductive organ cancer
female reproductive system disease
Female sexual arousal disorder
Female sexual dysfunction
femoral cancer
Femoral hernia
femoral neuropathy
Fetal adenocarcinoma
Fetal alcohol spectrum disorder
Fetal alcohol syndrome
Fetal distress
fetal erythroblastosis
Fetal hydantoin syndrome
Fetal macrosomia
Fetal thrombotic vasculopathy
Fetal warfarin syndrome
Fetal-maternal haemorrhage
Fever
Fever of unknown origin
Fibrinolysis syndrome
Fibroadenoma
Fibrocartilaginous mesenchymoma of bone
Fibrocystic breast changes
Fibrocystic breasts
Fibrodysplasia ossificans progressiva
Fibrolamellar hepatocellular carcinoma
Fibromatosis
Fibromuscular dysplasia
Fibromyalgia
Fibropapillomatosis
Fibrosarcoma
Fibrothorax
Fibrous dysplasia
Fibrous dysplasia of bone
fibrous histiocytoma
Fiddler's neck
Fifth disease
filarial elephantiasis
Filariasis
Fin rot
Finger agnosia
Fire blight
Fire breather's pneumonia
First-degree atrioventricular block
Fish acute toxicity syndrome
Fissured tongue
Fistula
Fitz-Hugh–Curtis syndrome
Fixed drug reaction
Flaccid paralysis
Flail chest
Flash blindness
Flat feet
Flatfeet
Flea allergy dermatitis
Floater
Floating–Harbor syndrome
Flock worker's lung
Florid cutaneous papillomatosis
Flynn–Aird syndrome
Focal dermal hypoplasia
Focal dystonia
focal epilepsy
focal epithelial hyperplasia
Focal facial dermal dysplasia
focal hand dystonia
Focal nodular hyperplasia
Focal segmental glomerulosclerosis
Folate deficiency
Folie à deux
Follicle-stimulating hormone insensitivity
Follicular cyst of ovary
Follicular hyperplasia
Follicular lymphoma
follicular mucinosis
follicular thyroid carcinoma
Folliculitis
Food allergy
Food craving
Food intolerance
Food poisoning
Foot drop
Foster-Kennedy syndrome
Fournier gangrene
Foville's syndrome
Fox–Fordyce disease
Fragile X syndrome
Fragile X-associated tremor/ataxia syndrome
Fraser syndrome
Frasier syndrome
Freeman–Sheldon syndrome
freemartinism
Fregoli delusion
Frey syndrome
Frey's syndrome
Friedreich ataxia
Friedreich's ataxia
Frontal lobe disorder
frontal lobe epilepsy
Frontal lobe seizures
frontal sinusitis
Frontonasal dysplasia
Frontotemporal dementia
Frontotemporal lobar degeneration
Frostbite
frozen shoulder
Fructose bisphosphatase deficiency
Fructose malabsorption
fructose-1,6-bisphosphatase deficiency
Fuchs spot
Fuchs' dystrophy
Fuchs' endothelial dystrophy
Fucosidosis
Fugue state
Fukuyama congenital muscular dystrophy
Fumarase deficiency
functional colonic disease
Functional neurologic disorders/conversion disorder
fundus dystrophy
fungal infectious disease
Fungal keratitis
Fungal meningitis
Fungal sinusitis
Fungemia
Fusarium ear blight
gait apraxia
Galactokinase deficiency
Galactorrhea
Galactose epimerase deficiency
Galactose-1-phosphate uridylyltransferase deficiency
Galeazzi fracture
Gallbladder cancer
Gallbladder disease
Gallbladder polyp
Galloway Mowat syndrome
Gallstone
Gallstones
gamma chain deficiency
Gangliocytic paraganglioma
gangliocytoma
Ganglioglioma
Ganglion cyst
Ganglioneuroblastoma
Ganglioneuroma
Gangliosidosis
gangliosidosis GM2
Gangrene
Ganser syndrome
GAPO syndrome
Gardner's syndrome
Gas and gas pains
Gas gangrene
Gastric antral vascular ectasia
gastric dilatation
Gastric dilatation volvulus
gastric mucosal hypertrophy
Gastric outlet obstruction
gastric ulcer
Gastric varices
Gastric volvulus
Gastrinoma
Gastritis
Gastroenteritis
Gastroesophageal reflux disease
Gastroesophageal reflux disease (GERD)
Gastrointestinal bleeding
Gastrointestinal perforation
Gastrointestinal stromal tumor
Gastrointestinal stromal tumor (GIST)
gastrointestinal system cancer
gastrointestinal system disease
gastrointestinal tuberculosis
Gastroparesis
Gastroschisis
Gaucher disease
Gaucher's disease
Gender disparities in health
Gender dysphoria
General paresis of the insane
Generalized anxiety disorder
generalized dystonia
Generalized epilepsy with febrile seizures plus
Generalized pustular psoriasis
genetic disease
Genetic disorder
Genetic load
Geniculate ganglionitis
geniculate herpes zoster
Genital herpes
Genital wart
Genital warts
Genitopatellar syndrome
Genu recurvatum
Genu valgum
Genu varum
Geographic tongue
Geotrichosis
germ cell cancer
Germ cell tumor
Germinal matrix hemorrhage
Germinoma
Gerodermia osteodysplastica
Gerstmann syndrome
Gerstmann-Straussler-Scheinker syndrome
Gerstmann–Sträussler–Scheinker syndrome
Gestational diabetes
Gestational hypertension
Gestational pemphigoid
Gestational thrombocytopenia
Gestational trophoblastic disease
gestational trophoblastic neoplasm
Gianotti–Crosti syndrome
Giant axonal neuropathy
Giant cell arteritis
giant cell reparative granuloma
giant cell tumor
Giant platelet disorder
Giant-cell arteritis
Giant-cell fibroma
Giant-cell tumor of bone
Giardiasis
Gigantism
Gilbert syndrome
Gilbert's syndrome
Gilles de la Tourette syndrome
Gillespie syndrome
Gingival disease
Gingival enlargement
gingival hypertrophy
gingival overgrowth
gingival recession
Gingivitis
Gitelman syndrome
Glanders
Glanzmann's thrombasthenia
Glassy cell carcinoma of the cervix
Glaucoma
Glioblastoma
glioblastoma multiforme
Glioma
Gliomatosis cerebri
gliosarcoma
Global aphasia
Glomerulonephritis
Glomus tumor
Glossitis
Glucagonoma
Glucocorticoid remediable aldosteronism
glucose intolerance
glucose metabolism disease
Glucose-6-phosphate dehydrogenase deficiency
Glucose-galactose malabsorption
glucosephosphate dehydrogenase deficiency
Glut1 deficiency
Glutaric aciduria type 1
Glutathione synthetase deficiency
Glycerol kinase deficiency
Glycine encephalopathy
Glycogen storage disease
glycogen storage disease I
glycogen storage disease II
glycogen storage disease III
glycogen storage disease IV
Glycogen storage disease type I
Glycogen storage disease type II
Glycogen storage disease type III
Glycogen storage disease type IX
Glycogen storage disease type V
glycogen storage disease V
glycogen storage disease VI
glycogen storage disease VII
glycogen storage disease VIII
Glycoproteinosis
GM1 gangliosidoses
GM2-gangliosidosis, AB variant
gnathomiasis
Gnathostomiasis
goiter
Goitre
Goldenhar syndrome
Golfer's elbow
Gomez and López-Hernández syndrome
gonadal disease
Gonadal dysgenesis
Gonadoblastoma
Gonorrhea
Goodpasture syndrome
Gorham's disease
Gout
Gradenigo's syndrome
Graft-versus-host disease
Grand mal seizure
Grandiose delusions
Granular cell tumor
Granulocytosis
Granuloma annulare
Granuloma faciale
Granuloma inguinale
Granulomatosis with polyangiitis
Granulomatous amoebic encephalitis
granulomatous angiitis
Granulomatous mastitis
granulosa cell tumor
Granulosa cell tumour
Graves' disease
Graves' ophthalmopathy
Gravity anomaly
Gray baby syndrome
Gray matter heterotopia
Gray platelet syndrome
Greater trochanteric pain syndrome
Greenstick fractures
Griscelli syndrome
Griscelli syndrome type 2
Group B strep disease
Group B streptococcal infection
Groupthink
Growing pains
Growth hormone deficiency
growth hormone secreting pituitary adenoma
Growth plate fractures
Guanidinoacetate methyltransferase deficiency
Guillain-Barre syndrome
Guillain–Barré syndrome
Gulf War syndrome
Gunther disease
Guttate psoriasis
gynatresia
Haemobilia
haemonchiasis
Haemophilia
Haemophilia A
Haemophilia B
Haemophilia C
Haemophilus meningitis
Haemorrhagic disease of the newborn
Hailey-Hailey disease
Hailey–Hailey disease
Haim–Munk syndrome
Hair disease
Hair loss
Hair tourniquet
HAIR-AN syndrome
Hairy cell leukemia
Hairy leukoplakia
hairy tongue
Hajdu–Cheney syndrome
Hallermann-Streiff syndrome
Hallermann–Streiff syndrome
Hallucination
Hallucinatory palinopsia
Hallucinogen persisting perception disorder
Hallux rigidus
Halo nevus
Hamartoma
Hamman's syndrome
Hammer toe
Hammertoe and mallet toe
Hamstring injury
hand dermatosis
Hand eczema
Hand injury
hand, foot and mouth disease
Hand, foot, and mouth disease
Hand-foot-and-mouth disease
Hand-foot-genital syndrome
Hangover
Hangovers
hantavirus pulmonary syndrome
Harlequin syndrome
Harlequin-type ichthyosis
Hartnup disease
Hashimoto's disease
Hashimoto's thyroiditis
Hay fever
Hay–Wells syndrome
Head and lateral line erosion
Head and neck cancer
Head injury
Head lice
Head lice infestation
Headache
Headache attributed to a substance or its withdrawal
Headaches in children
Hearing
Hearing loss
heart aneurysm
Heart arrhythmia
Heart arrhythmias
Heart attack
Heart cancer
heart disease
Heart failure
Heart failure with preserved ejection fraction
Heart murmurs
Heart palpitations
heart septal defect
heart valve disease
Heartburn
Heat burst
Heat exhaustion
Heat rash
Heat stroke
Heat syncope
Heatstroke
Heavy chain disease
heel spur
Heerfordt syndrome
Heinrich event
Helicobacter pylori
Helicobacter pylori (H. pylori) infection
HELLP syndrome
Helminthiasis
Hemangioblastoma
Hemangioendothelioma
Hemangioma
Hemangiopericytoma
Hemarthrosis
Hematemesis
hematocele of tunica vaginalis testis
Hematochezia
Hematocolpos
hematologic cancer
Hematoma
Hematometra
hematopoietic system disease
Hematosalpinx
Hematospermia
Hematuria
Hemeralopia
Hemiballismus
Hemicrania continua
Hemifacial microsomia
Hemifacial spasm
Hemiparesis
hemiplegia
Hemispatial neglect
hemochromatosis
Hemoglobin C
hemoglobin C disease
Hemoglobinemia
hemoglobinopathy
Hemoglobinuria
Hemolytic anemia
Hemolytic disease of the newborn
Hemolytic disease of the newborn (ABO)
Hemolytic uremic syndrome (HUS)
Hemolytic-uremic syndrome
hemometra
Hemopericardium
Hemoperitoneum
Hemophagocytic lymphohistiocytosis
Hemophilia
hemophilia B
Hemopneumothorax
hemorrhagic disease
hemorrhagic fever with renal syndrome
Hemorrhagic gastroenteritis
Hemorrhoid
Hemorrhoids
Hemosiderosis
Hemosuccus pancreaticus
Hemothorax
Henoch-Schoenlein purpura
Henoch-Schonlein purpura
Henoch–Schönlein purpura
Heparin-induced thrombocytopenia
hepatic coma
Hepatic encephalopathy
hepatic tuberculosis
Hepatic veno-occlusive disease
Hepatitis
Hepatitis A
Hepatitis B
Hepatitis C
Hepatitis D
Hepatitis E
Hepatoblastoma
Hepatocellular adenoma
Hepatocellular carcinoma
Hepatoerythropoietic porphyria
Hepatomegaly
hepatopulmonary syndrome
Hepatorenal syndrome
Hepatosplenic T-cell lymphoma
Hepatotoxicity
Hereditary angioedema
hereditary breast ovarian cancer syndrome
Hereditary breast–ovarian cancer syndrome
Hereditary coproporphyria
Hereditary diffuse leukoencephalopathy with spheroids
Hereditary elliptocytosis
Hereditary fructose intolerance
hereditary fructose intolerance syndrome
Hereditary hemorrhagic telangiectasia
Hereditary hyperbilirubinemia
Hereditary leiomyomatosis and renal cell cancer syndrome
Hereditary motor and sensory neuropathy
hereditary mucosal leukokeratosis
Hereditary multiple exostoses
Hereditary neuralgic amyotrophy
Hereditary nonpolyposis colorectal cancer
Hereditary pancreatitis
Hereditary persistence of fetal hemoglobin
Hereditary sensory and autonomic neuropathy type I
Hereditary spastic paraplegia
Hereditary spherocytosis
Hereditary stomatocytosis
Hermansky-Pudlak syndrome
Hermansky–Pudlak syndrome
Hernia
Herniated disk
Herpangina
Herpes esophagitis
herpes gestationis
Herpes labialis
Herpes simplex
Herpes simplex keratitis
herpes simplex virus keratitis
herpes zoster
Herpes zoster ophthalmicus
Herpesviral encephalitis
Herpetic gingivostomatitis
Herpetic whitlow
Heterophoria
Heterotopic ossification
Heterotopic pregnancy
Heyde's syndrome
HFE hereditary haemochromatosis
Hiatal hernia
Hiatus hernia
Hibernoma
Hiccups
Hidradenitis
Hidradenitis suppurativa
hidradenoma
Hidrocystoma
High blood pressure (hypertension)
High blood pressure in children
High cholesterol
high pressure neurological syndrome
High-altitude cerebral edema
High-altitude pulmonary edema
Highland Clearances
Hilar cholangiocarcinoma
Hip dislocation
Hip dysplasia
Hip fracture
Hip labral tear
Hirschsprung's disease
Hirsutism
Histidinemia
Histiocytoma
Histiocytoma (dog)
Histiocytosis
Histoplasmosis
Histotoxic hypoxia
Histrionic personality disorder
HIV-associated lipodystrophy
HIV/AIDS
Hives
Hives and angioedema
Hoarding disorder
Hodgkin's lymphoma
Hodgkin's lymphoma (Hodgkin's disease)
Hodgkin's lymphoma, lymphocytic-histiocytic predominance
Holocarboxylase synthetase deficiency
Holoprosencephaly
Holt–Oram syndrome
Homelessness
Homocystinuria
Hoof wall separation disease
Hookworm infection
hordeolum
Horner syndrome
Horner's syndrome
Horseshoe kidney
Hospital-acquired infection
Hot flashes
Howel–Evans syndrome
Hoyeraal-Hreidarsson syndrome
HPV infection
HPV-positive oropharyngeal cancer
Hughes–Stovin syndrome
Human cytomegalovirus
Human granulocytic anaplasmosis
Human herpesvirus 7
human immunodeficiency virus infectious disease
Human monocytotropic ehrlichiosis
Human papillomavirus infection
Humerus fracture
Humoral immune deficiency
Hunter syndrome
Huntington's disease
Hurler syndrome
Hurthle cell cancer
Hwabyeong
Hydranencephaly
Hydroa vacciniforme
Hydrocele
Hydrocele testis
Hydrocephalus
Hydrolethalus syndrome
Hydronephrosis
hydrophthalmos
Hydrops fetalis
Hydrosalpinx
Hymenolepiasis
Hyoid bone fracture
Hyper IgM syndrome
Hyper-IgD syndrome
Hyper-IgM syndrome type 1
Hyperacusis
Hyperaldosteronism
Hyperalgesia
Hyperammonemia
Hyperandrogenism
hyperargininemia
Hypercalcaemia
hypercalcemia
Hypercapnia
Hypercementosis
Hyperchloremic acidosis
Hypercholesterolemia
Hypercoagulability in pregnancy
Hyperdontia
Hyperekplexia
hyperekplexia 1
Hyperemesis gravidarum
Hypereosinophilic syndrome
Hyperestrogenism
hyperglobulinemic purpura
Hyperglycemia
Hyperglycemia in diabetes
Hyperglycerolemia
Hypergonadotropic hypogonadism
Hypergymnasia
Hyperhidrosis
Hyperhomocysteinemia
Hyperimmunoglobulin E syndrome
Hyperinsulinemia
hyperinsulinemic hypoglycemia
Hyperinsulinism
Hyperkalemia
Hyperkalemic periodic paralysis
Hyperkinetic disorder
hyperlipoproteinemia type III
hyperlipoproteinemia type IV
hyperlipoproteinemia type V
hyperlucent lung
Hyperlysinemia
Hypermagnesemia
Hypermobility (joints)
Hypernasal speech
Hypernatremia
hyperopia
Hyperosmolar hyperglycemic state
Hyperostosis
Hyperoxaluria and oxalosis
Hyperparathyroidism
Hyperphenylalaninemia
Hyperphosphatemia
Hyperpigmentation
Hyperpituitarism
Hyperplasia
Hyperprolactinaemia
hyperprolactinemia
Hypersalivation
Hypersensitivity pneumonitis
hypersensitivity reaction type III disease
hypersensitivity reaction type IV disease
hypersensitivity vasculitis
Hypersomnia
hypersplenism
Hypertension
Hypertensive emergency
Hypertensive encephalopathy
Hypertensive heart disease
Hypertensive kidney disease
Hypertensive leukoencephalopathy
Hypertensive retinopathy
Hyperthyroidism
Hyperthyroxinemia
Hypertrichosis
Hypertrichosis cubiti
Hypertriglyceridemia
Hypertrophic cardiomyopathy
Hypertrophic osteopathy
hypertrophic pyloric stenosis
Hypertrophic scar
Hypertropia
Hypertryptophanemia
Hyperuricemia
Hyperventilation syndrome
Hypervitaminosis A
Hypervitaminosis D
Hypervolemia
Hyphema
Hypoactive sexual desire disorder
Hypoaldosteronism
Hypocalcaemia
Hypocapnia
Hypochondriasis
Hypochondrogenesis
Hypochondroplasia
hypochromic anemia
hypodermyiasis
Hypoestrogenism
Hypoglycemia
Hypogonadism
Hypogonadotropic hypogonadism
Hypohidrosis
Hypohidrotic ectodermal dysplasia
Hypokalemia
Hypokalemic acidosis
Hypokalemic periodic paralysis
Hypokinesia
Hypolipoproteinemia
Hypomagnesemia
Hypomagnesemia with secondary hypocalcemia
Hypomania
Hyponatremia
Hypoparathyroidism
Hypopharyngeal cancer
hypopharynx cancer
Hypophosphatasia
Hypophosphatemia
Hypopigmentation
Hypopituitarism
Hypoplastic left heart syndrome
Hypoplastic right heart syndrome
Hypoproteinemia
Hypoprothrombinemia
Hypospadias
Hypotension
Hypothalamic disease
hypothalamic neoplasm
Hypothermia
Hypothyroidism
Hypotrichosis
Hypotrichosis with juvenile macular dystrophy
Hypouricemia
Hypovolemia
Hypoxia (medical)
Hürthle cell
I-cell disease
Ice cream headaches
Ichthyophthirius multifiliis
Ichthyosis
Ichthyosis bullosa of Siemens
Ichthyosis prematurity syndrome
Ichthyosis vulgaris
Ictal headache
Id reaction
Ideomotor apraxia
Idiopathic CD4+ lymphocytopenia
idiopathic CD4-positive T-lymphocytopenia
idiopathic generalized epilepsy
Idiopathic hypersomnia
idiopathic interstitial pneumonia
Idiopathic intracranial hypertension
Idiopathic osteosclerosis
Idiopathic pulmonary fibrosis
Idiopathic pulmonary haemosiderosis
Idiopathic sclerosing mesenteritis
Idiopathic scrotal calcinosis
Idiopathic thrombocytopenic purpura (ITP)
IgA glomerulonephritis
IgA nephropathy
IgA nephropathy (Berger's disease)
IgG4-related disease
IgG4-related prostatitis
ileal neoplasm
Ileitis
Ileus
Iliotibial band syndrome
Illness anxiety disorder
Illusory palinopsia
Iminoglycinuria
Immersion foot syndromes
Immune thrombocytopenic purpura
Immunodeficiency
Impacted wisdom teeth
Impaction (animals)
Impaired fasting glucose
Impaired glucose tolerance
Imperforate anus
Imperforate hymen
Impetigo
Impingement syndrome
Impulse control disorder
in situ carcinoma
inappropriate ADH syndrome
Inborn error of metabolism
Inborn errors of metabolism
Incident stress
Incisional hernia
Inclusion body myositis
Incompetent cervix
Incontinentia pigmenti
Incontinentia pigmenti achromians
Indigestion
infant gynecomastia
Infant jaundice
Infant reflux
Infant respiratory distress syndrome
Infantile cortical hyperostosis
infantile epileptic encephalopathy
Infantile esotropia
Infantile neuroaxonal dystrophy
Infantile neuronal ceroid lipofuscinosis
Infantile Refsum disease
Infarction
Infection
Infectious bovine keratoconjunctivitis
Infectious diseases
Infectious mononucleosis
Infectious necrotic hepatitis
Infective endocarditis
inferior myocardial infarction
Inferior vena cava syndrome
Inferiority complex
Infertility
Inflammatory bowel disease
Inflammatory bowel disease (IBD)
Inflammatory breast cancer
inflammatory breast carcinoma
Inflation
Influenza
Influenza (flu)
Influenza A virus subtype H3N8
Influenza A virus subtype H5N1
Influenza A virus subtype H5N8
Influenza-like illness
infratentorial cancer
Ingrown hair
Ingrown nail
Ingrown toenails
Inguinal hernia
inherited blood coagulation disease
inherited metabolic disorder
Iniencephaly
inner ear disease
Insect bites and stings
Insomnia
Insulin resistance
Insulinoma
Intellectual disability
Intention tremor
Interdigitating dendritic cell sarcoma
intermediate coronary syndrome
intermediate uveitis
Intermenstrual bleeding
Intermittent claudication
Intermittent explosive disorder
Intermittent hydrarthrosis
Internal bleeding
Internuclear ophthalmoplegia
Interrupted aortic arch
Intersex
Interstitial cystitis
Interstitial lung disease
Interstitial nephritis
Interstitial pregnancy
Intertrigo
Intestinal atresia
intestinal cancer
Intestinal capillariasis
intestinal disease
Intestinal ischemia
Intestinal malrotation
intestinal obstruction
intestinal perforation
Intestinal pseudo-obstruction
Intestinal pseudoobstruction
intestinal schistosomiasis
Intestinal spirochetosis
intestinal volvulus
Intracerebral hemorrhage
Intracranial aneurysm
intracranial arterial disease
intracranial embolism
Intracranial hematoma
Intracranial hemorrhage
intracranial hypertension
intracranial hypotension
intracranial sinus thrombosis
intracranial thrombosis
intracranial vasospasm
Intraductal papillary mucinous neoplasm
Intraductal papilloma
intrahepatic cholangiocarcinoma
intrahepatic cholestasis
Intrahepatic cholestasis of pregnancy
Intranodal palisaded myofibroblastoma
intraocular lymphoma
Intraparenchymal hemorrhage
Intrauterine growth restriction
Intrauterine hypoxia
Intravascular large B-cell lymphoma
intussusception
Intussusception (medical disorder)
Invasive carcinoma of no special type
invasive ductal carcinoma
invasive lobular carcinoma
Invasive urothelial carcinoma
Inverted nipple
inverted papilloma
Iodine deficiency
iris cancer
iris disease
iritis
Iron deficiency
Iron deficiency anemia
iron metabolism disease
Iron-deficiency anemia
Irregular sleep–wake rhythm
Irritable bowel syndrome
irritant dermatitis
Irritant diaper dermatitis
Irukandji syndrome
Ischemic cardiomyopathy
Ischemic colitis
Ischemic hepatitis
islet cell tumor
Isodicentric 15
Isolated hypogonadotropic hypogonadism
Isosporiasis
Isovaleric acidemia
Itch
Itchy skin (pruritus)
Jalili syndrome
Jamais vu
Janeway lesion
Jansen's metaphyseal chondrodysplasia
Jansky–Bielschowsky disease
Japanese encephalitis
Jargon aphasia
Jarisch–Herxheimer reaction
Jaundice
jaw cancer
Jefferson fracture
jejunal cancer
Jellyfish stings
Jervell and Lange-Nielsen syndrome
Jervell-Lange Nielsen syndrome
Jet lag
Jet lag disorder
Job's syndrome
Jock itch
Joint dislocation
Joint effusion
Jones fracture
Joubert syndrome
Jumping Frenchmen of Maine
junctional epidermolysis bullosa
Junctional epidermolysis bullosa (medicine)
Junctional epidermolysis bullosa (veterinary medicine)
Junctional tachycardia
Juvenile cellulitis
Juvenile dermatomyositis
Juvenile fibromyalgia
Juvenile idiopathic arthritis
Juvenile myelomonocytic leukemia
Juvenile myoclonic epilepsy
Juvenile polyposis syndrome
juvenile rheumatoid arthritis
Juvenile xanthogranuloma
juxtacortical osteosarcoma
Kabuki syndrome
Kallmann syndrome
Kangri cancer
Kaposi's sarcoma
Kartagener syndrome
Kasabach–Merritt syndrome
Katz syndrome
Kaufman oculocerebrofacial syndrome
Kawasaki disease
Kayser–Fleischer ring
Kearns-Sayre syndrome
Kearns–Sayre syndrome
Keloid
Kennedy's disease
Kennel cough
Keratitis
Keratoacanthoma
Keratoconjunctivitis
keratoconjunctivitis sicca
Keratoconus
Keratocystic odontogenic tumour
Keratosis
keratosis follicularis
Keratosis pilaris
Kerion
Kernicterus
Ketoacidosis
Ketosis
Keutel syndrome
Kidney cancer
kidney cortex necrosis
Kidney cysts
Kidney disease
Kidney failure
Kidney infection
kidney papillary necrosis
Kidney stone disease
Kidney stones
Kidney tumour
Kikuchi disease
Kimura's disease
Klatskin tumor
Klatskin's tumor
Klebsiella pneumonia
Kleine–Levin syndrome
Kleptomania
Klinefelter syndrome
Klinefelter's syndrome
Klippel-Feil syndrome
Klippel-Trenaunay syndrome
Klippel–Feil syndrome
Klippel–Trénaunay syndrome
Klumpke paralysis
Kluver-Bucy syndrome
Klüver–Bucy syndrome
Knee arthritis
Knee bursitis
Knee pain
Kohlschütter-Tönz syndrome
Konzo
Koro (medicine)
Korsakoff's syndrome
Kostmann syndrome
Krabbe disease
Krukenberg carcinoma
Krukenberg tumor
kuru
Kuru (disease)
Kwashiorkor
Kyasanur Forest disease
Kyphoscoliosis
Kyphosis
Kyrle disease
Köhler disease
La Crosse encephalitis
Labial fusion
Labyrinthine fistula
Labyrinthitis
Lactic acidosis
Lactose intolerance
Lacunar stroke
Laennec's cirrhosis
Lafora disease
Lambert-Eaton myasthenic syndrome
Lambert–Eaton myasthenic syndrome
Lamellar ichthyosis
Laminitis
Landau-Kleffner syndrome
Landau–Kleffner syndrome
Langer mesomelic dysplasia
Langerhans cell histiocytosis
Langerhans cell sarcoma
Langer–Giedion syndrome
Language disorder
large cell carcinoma
Large for gestational age
Large granular lymphocytic leukemia
large intestine cancer
Large-cell lung carcinoma
Large-cell lung carcinoma with rhabdoid phenotype
Laron syndrome
Larsen syndrome
Laryngeal cancer
Laryngeal cyst
laryngeal disease
Laryngeal papillomatosis
laryngeal tuberculosis
Laryngitis
Laryngomalacia
Laryngospasm
laryngostenosis
Laryngotracheal stenosis
larynx cancer
Lassa fever
Latent iron deficiency
latent syphilis
Latent tuberculosis
Lateral medullary syndrome
Lateral meningocele syndrome
lateral sclerosis
lateral sinus thrombosis
Latex allergy
Lathyrism
Latrodectism
Lattice degeneration
Laurence-Moon syndrome
Laurence–Moon syndrome
Lazy eye (amblyopia)
Le Fort fracture of skull
Lead poisoning
Learning disability
Leber congenital amaurosis
Leber hereditary optic neuropathy
Leber's congenital amaurosis
Leber's hereditary optic neuropathy
Lecithin cholesterol acyltransferase deficiency
Left anterior fascicular block
Left axis deviation
Left bundle branch block
Left ventricular hypertrophy
leg dermatosis
Legg-Calve-Perthes disease
Legg–Calvé–Perthes disease
legionellosis
Legionnaires' disease
Legius syndrome
Leigh disease
Leigh syndrome
Leiner's disease
Leiomyoma
leiomyomatosis
Leiomyosarcoma
Leishmaniasis
Lemierre's syndrome
Lennox–Gastaut syndrome
lens disease
lens subluxation
Lentigo maligna
Lentigo maligna melanoma
Lepromatous leprosy
Leprosy
Leptospirosis
Lesch-Nyhan syndrome
Lesch–Nyhan syndrome
Lethal congenital contracture syndrome
Lethal midline granuloma
Leukemia
Leukemoid reaction
Leukocoria
Leukocyte adhesion deficiency
Leukocyte adhesion deficiency-1
leukocyte disease
Leukocytosis
Leukodystrophy
Leukoencephalopathy with vanishing white matter
Leukopenia
Leukoplakia
leukoplakia of penis
Leukorrhea
leukostasis
Levator ani syndrome
Levo-Transposition of the great arteries
Lewy body dementia
Leydig cell hypoplasia
Leydig cell tumor
Leydig cell tumour
Li-Fraumeni syndrome
Lice
lice infestation
Lichen nitidus
Lichen planus
Lichen ruber moniliformis
Lichen sclerosus
Lichen simplex chronicus
Lichen striatus
Liddle syndrome
Liddle's syndrome
Liebenberg syndrome
Ligamentous laxity
Light chain deposition disease
Limb-girdle muscular dystrophy
Limbic encephalitis
limited scleroderma
Limp
lingual goiter
Linitis plastica
lip cancer
lip disease
lipid metabolism disorder
Lipid pneumonia
lipid storage disease
Lipid storage disorder
Lipoatrophic diabetes
Lipodermatosclerosis
Lipodystrophy
Lipoid congenital adrenal hyperplasia
lipoid nephrosis
lipoid proteinosis
Lipoma
Lipomatosis
Lipoprotein lipase deficiency
Liposarcoma
Lisfranc injury
Lisp
Lissencephaly
Listener fatigue
Listeria infection
Listeria meningitis
Listeriosis
Little cherry disease
Livedo reticularis
Liver abscess
Liver cancer
liver cirrhosis
Liver disease
Liver hemangioma
Liver injury
Loa loa filariasis
Lobar pneumonia
Lobomycosis
Lobular carcinoma in situ
Lobular carcinoma in situ (LCIS)
Locked-in syndrome
Loeys-Dietz syndrome
Loeys–Dietz syndrome
Logorrhea (psychology)
loiasis
Loin pain hematuria syndrome
Long QT syndrome
Long-chain 3-hydroxyacyl-coenzyme A dehydrogenase deficiency
Lordosis
Louping ill
Low back pain
Low blood pressure (hypotension)
Low sex drive in women
Low sperm count
low tension glaucoma
Lower gastrointestinal bleeding
Lower motor neuron lesion
Lown-Ganong-Levine syndrome
Lown–Ganong–Levine syndrome
Loxoscelism
Lucey–Driscoll syndrome
Ludwig's angina
Lujan–Fryns syndrome
Lumbar spinal stenosis
Lung abscess
lung benign neoplasm
Lung cancer
lung disease
lung giant cell carcinoma
lung oat cell carcinoma
lung small cell carcinoma
Lupus
Lupus erythematosus
Lupus nephritis
Lupus vulgaris
Lutembacher's syndrome
Luteoma
Luxating patella
Lyme disease
lymph node tuberculosis
lymphadenitis
Lymphangiectasia
Lymphangioleiomyomatosis
Lymphangioma
Lymphangiosarcoma
Lymphangitis
Lymphatic filariasis
lymphatic system disease
Lymphedema
lymphoblastic leukemia
Lymphocele
Lymphocytic choriomeningitis
Lymphocytic colitis
Lymphocytic interstitial pneumonia
Lymphocytic pleocytosis
Lymphocytopenia
Lymphocytosis
Lymphogranuloma venereum
Lymphoid leucosis
Lymphoma
Lymphomatoid granulomatosis
lymphopenia
lymphoplasmacytic lymphoma
Lynch syndrome
Lysinuric protein intolerance
Lysosomal acid lipase deficiency
Lysosomal storage disease
Lytico-bodig disease
Lábrea fever
Léri–Weill dyschondrosteosis
Mach tuck
Machado–Joseph disease
Macrocephaly
Macrocephaly-capillary malformation
macrocytic anemia
Macrocytosis
Macroglossia
Macropsia
Macular degeneration
Macular degeneration, dry
Macular degeneration, wet
Macular edema
Macular hole
Madarosis
Madelung's deformity
Maffucci syndrome
Magnesium deficiency (medicine)
Majocchi's disease
Major depressive disorder
Major depressive episode
Major trauma
Mal de debarquement
Malabsorption
Malakoplakia
Malaria
Male accessory gland infection
Male breast cancer
Male hypogonadism
Male infertility
male reproductive organ cancer
male reproductive system disease
Malformative syndrome
malignant fibroxanthoma
malignant glioma
malignant histiocytic disease
Malignant histiocytosis
malignant hypertension
Malignant hyperthermia
Malignant peripheral nerve sheath tumor
Malignant peripheral nerve sheath tumors
Malignant pleural effusion
Malingering
Mallory–Weiss syndrome
Malnutrition
Malocclusion
Malonyl-CoA decarboxylase deficiency
Malpuech facial clefting syndrome
Malunion
Mammary duct ectasia
Mammary myofibroblastoma
Mammary tumor
mandibular cancer
Mandibular fracture
Manganism
Mange
Mansonelliasis
Mantle cell lymphoma
Maple syrup urine disease
Marasmus
Marburg hemorrhagic fever
Marburg virus disease
Marchiafava–Bignami disease
Marden–Walker syndrome
Marfan syndrome
Marginal zone B-cell lymphoma
Marinesco–Sjögren syndrome
Marjolin's ulcer
Maroteaux–Lamy syndrome
Marshall syndrome
Marshall–Smith syndrome
Mast cell activation syndrome
mast-cell leukemia
mast-cell sarcoma
Mastitis
Mastocytoma
Mastocytosis
Mastoiditis
Maternal death
Maturity onset diabetes of the young
Maxillary hypoplasia
maxillary neoplasm
maxillary sinus neoplasm
maxillary sinusitis
May–Thurner syndrome
MCAD deficiency
McCune Albright syndrome
McCune–Albright syndrome
McKusick–Kaufman syndrome
McLeod syndrome
Measles
Meatal stenosis
mechanical strabismus
Meckel syndrome
Meckel's diverticulum
Meconium aspiration syndrome
Meconium peritonitis
Medial medullary syndrome
Medial pontine syndrome
Median arcuate ligament syndrome
Median rhomboid glossitis
mediastinal cancer
Mediastinal lymphadenopathy
Mediastinal tumor
Mediastinitis
Medical error
Medication overuse headache
Medication-associated osteonecrosis of the jaw
Medication-associated osteonecrosis of the jaw (MRONJ)
Medium-chain acyl-coenzyme A dehydrogenase deficiency
Medullary cystic kidney disease
Medullary sponge kidney
Medullary thyroid cancer
Medulloblastoma
Medulloepithelioma
Mees' lines
Meesmann corneal dystrophy
Megacolon
Megacystis
Megaesophagus
megakaryocytic leukemia
Megalencephaly
Megaloblastic anemia
meibomian cyst
Meige syndrome
Meige's syndrome
Meigs' syndrome
Melanocytic nevus
Melanoma
melanotic neuroectodermal tumor
MELAS syndrome
Melasma
Melioidosis
Melkersson-Rosenthal syndrome
Melkersson–Rosenthal syndrome
Melorheostosis
Membranoproliferative glomerulonephritis
Membranous glomerulonephritis
Membranous nephropathy
Memory distrust syndrome
Mendelson's syndrome
Meniere's disease
Meningioma
Meningism
Meningitis
meningocele
Meningococcal disease
meningococcal meningitis
Meningoencephalitis
Meniscal cyst
Menkes disease
Menopause
Menorrhagia
Menstrual cramps
mental depression
Mental disorder
Mental disorders diagnosed in childhood
Mental illness
Meralgia paraesthetica
Meralgia paresthetica
Mercury poisoning
Merkel cell carcinoma
Merkel-cell carcinoma
MERRF syndrome
Mesangial proliferative glomerulonephritis
Mesenchymal chondrosarcoma
mesenchymoma
Mesenteric ischemia
mesenteric lymphadenitis
mesenteric vascular occlusion
Mesoblastic nephroma
Mesothelioma
Metabolic acidosis
Metabolic alkalosis
Metabolic disorder
Metabolic syndrome
Metachromatic leukodystrophy
metagonimiasis
Metal fume fever
metal metabolism disorder
Metanephric adenoma
Metaphyseal dysplasia
Metastasis
Metastatic calcification
Metatarsalgia
Metatarsophalangeal joint sprain
Methanol toxicity
Methemoglobinemia
Methylmalonic acidemia
Methylmalonyl-CoA mutase deficiency
Metrorrhagia
Mevalonate kinase deficiency
mevalonic aciduria
MHC class II deficiency
Micro syndrome
Microangiopathic hemolytic anemia
Microcephaly
Microcytic anemia
Microcytosis
Micropenis
Microphthalmia
Micropsia
Microscopic colitis
Microscopic polyangiitis
Microsporidiosis
Microvillous inclusion disease
Middle back pain
middle cerebral artery infarction
Middle cerebral artery syndrome
Middle East respiratory syndrome
Migraine
migraine with aura
migraine without aura
Migraine-associated vertigo
Mikulicz disease
Mild androgen insensitivity syndrome
Mild cognitive impairment
Mild cognitive impairment (MCI)
Milia
Miliaria
miliaria rubra
Miliary tuberculosis
Milk allergy
Milk fever
Milk sickness
Milk-alkali syndrome
milker's nodule
Millard–Gubler syndrome
Miller Fisher syndrome
Miller syndrome
Miller–Dieker syndrome
Milroy's disease
Milwaukee shoulder syndrome
Minimal change disease
Minor depressive disorder
Miosis
Mirizzi's syndrome
Mirror syndrome
Miscarriage
mite infestation
Mitochondrial disease
Mitochondrial DNA depletion syndrome
mitochondrial encephalomyopathy
mitochondrial metabolism disease
Mitochondrial myopathy
Mitochondrial neurogastrointestinal encephalopathy syndrome
Mitochondrial trifunctional protein deficiency
Mitral insufficiency
Mitral valve disease
mitral valve insufficiency
Mitral valve prolapse
Mitral valve regurgitation
Mitral valve stenosis
Mittelschmerz
mixed cell type cancer
Mixed connective tissue disease
Molar pregnancy
Mold allergy
Moles
Mollaret's meningitis
Molluscum contagiosum
Molybdenum cofactor deficiency
MOMO syndrome
Monckeberg's arteriosclerosis
Mongolian spot
monieziasis
Monilethrix
Monkeypox
Monoarthritis
Monoclonal gammopathy of undetermined significance
Monoclonal gammopathy of undetermined significance (MGUS)
monocular esotropia
Monocytosis
MonoMAC
mononeuropathy
Mononucleosis
Monoplegia
Monorchism
Monteggia fracture
Mood disorder
morbid obesity
Morgagni Stewart Morel syndrome
Morning sickness
Morphea
morphine dependence
Morquio syndrome
Morsicatio buccarum
Morton's neuroma
Morvan's syndrome
Mosquito bites
Mosquito-borne disease
Motion sickness
Motion-induced blindness
Motor disorder
motor peripheral neuropathy
Mouth cancer
mouth disease
Mouth ulcer
movement disease
Movement disorders
Mowat–Wilson syndrome
Moyamoya disease
MRSA infection
mucinoses
mucinous adenocarcinoma
Mucinous cystadenocarcinoma
Mucinous tubular and spindle cell carcinoma
Muckle–Wells syndrome
mucocutaneous leishmaniasis
Mucoepidermoid carcinoma
Mucolipidosis type IV
Mucopolysaccharidosis
mucopolysaccharidosis I
mucopolysaccharidosis II
mucopolysaccharidosis III
mucopolysaccharidosis IV
mucopolysaccharidosis VI
Mucormycosis
Mucositis
mucosulfatidosis
Muenke syndrome
Muir-Torre syndrome
Mulibrey nanism
Multicystic dysplastic kidney
multidrug-resistant tuberculosis
Multifocal atrial tachycardia
Multifocal motor neuropathy
multiple acyl-CoA dehydrogenase deficiency
Multiple carboxylase deficiency
Multiple chemical sensitivity
Multiple endocrine neoplasia type 1
Multiple endocrine neoplasia type 2
multiple endocrine neoplasia type 2A
Multiple endocrine neoplasia type 2b
Multiple epiphyseal dysplasia
Multiple evanescent white dot syndrome
Multiple myeloma
Multiple organ dysfunction syndrome
multiple personality disorder
Multiple sclerosis
Multiple sulfatase deficiency
Multiple system atrophy
Multiple system atrophy (MSA)
Mumps
Murine typhus
Muscle atrophy
muscle benign neoplasm
muscle cancer
Muscle cramp
Muscle dysmorphia
Muscle weakness
muscular atrophy
Muscular dystrophy
Musculoskeletal disorder
musculoskeletal system disease
Mushroom poisoning
mutism
Myalgia
Myasthenia gravis
Mycobacterium avium complex disease
Mycobacterium avium-intracellulare infection
Mycoplasma hominis infection
Mycoplasma pneumonia
Mycosis
Mycosis fungoides
Myelitis
Myelodysplastic syndrome
Myelodysplastic syndromes
myelodysplastic/myeloproliferative neoplasm
Myelofibrosis
Myeloid sarcoma
Myelolipoma
myelomeningocele
Myelopathy
Myeloperoxidase deficiency
Myelophthisic anemia
Myeloproliferative neoplasm
Myhre syndrome
Myiasis
Myocardial infarction
Myocardial ischemia
Myocardial rupture
Myocardial stunning
Myocardiodystrophy
Myocarditis
Myoclonic astatic epilepsy
myoclonic cerebellar dyssynergia
Myoclonic dystonia
Myoclonic epilepsy
Myoclonus
myoepithelioma
Myofascial pain syndrome
myofibroma
Myoglobinuria
Myokymia
Myoma
Myopathy
myopia
Myositis
Myositis ossificans
Myotonia
Myotonia congenita
Myotonic dystrophy
myotonic dystrophy type 1
myotonic dystrophy type 2
Myxedema
Myxofibrosarcoma
Myxoid liposarcoma
Myxoma
myxosarcoma
Ménétrier's disease
Möbius syndrome
Müllerian agenesis
Nabothian cyst
Naegleria infection
Naegleriasis
Nail biting
Nail disease
Nail fungus
nail-patella syndrome
Nail–patella syndrome
Narcissistic personality disorder
Narcolepsy
Nasal congestion
Nasal fracture
Nasal polyp
Nasal polyps
Nasal septum deviation
Nasal septum perforation
Nasodigitoacoustic syndrome
Nasolacrimal duct obstruction
Nasopharyngeal angiofibroma
Nasopharyngeal carcinoma
nasopharyngeal disease
nasopharyngitis
Nasopharynx cancer
nasopharynx carcinoma
Nausea
Near-sightedness
Nearsightedness
Necatoriasis
Neck pain
Necrobiosis lipoidica
Necrolytic migratory erythema
Necrotizing enterocolitis
Necrotizing fasciitis
Necrotizing sialometaplasia
Necrotizing vasculitis
Needlestick injury
Nelson syndrome
Nelson's syndrome
Nemaline myopathy
neonatal abstinence syndrome
Neonatal alloimmune thrombocytopenia
neonatal anemia
Neonatal conjunctivitis
Neonatal encephalopathy
Neonatal hemochromatosis
Neonatal hepatitis
Neonatal herpes simplex
Neonatal infection
Neonatal jaundice
Neonatal meningitis
Neonatal sepsis
Neonatal tetanus
Neonatal withdrawal
Neonatal-onset multisystem inflammatory disease
Neoplasm
neovascular glaucoma
Nephritic syndrome
Nephritis
nephroblastoma
Nephrocalcinosis
Nephrogenic diabetes insipidus
Nephrogenic systemic fibrosis
Nephronophthisis
Nephroptosis
nephrosclerosis
Nephrosis
Nephrotic syndrome
Nerve compression syndrome
nervous system cancer
Nervous system disease
Netherton syndrome
Neu-Laxova syndrome
Neural tube defect
Neuralgia
Neurapraxia
Neurasthenia
neurilemmoma
neuritis
neuroaspergillosis
neuroaxonal dystrophy
Neuroblastoma
Neuroborreliosis
neurocirculatory asthenia
neurodegenerative disease
neurodermatitis
neuroendocrine carcinoma
Neuroendocrine tumor
Neuroferritinopathy
Neurofibroma
Neurofibromatosis
Neurofibromatosis type I
neurofibrosarcoma
neurogenic bladder
Neurogenic bladder dysfunction
neurogenic bowel
Neurogenic shock
neurohypophyseal diabetes insipidus
Neuroinflammation
Neuroleptic malignant syndrome
Neuroma
Neuromuscular disease
Neuromuscular junction disease
Neuromyelitis optica
Neuromyotonia
Neuronal ceroid lipofuscinosis
Neuropathic arthropathy
Neuropathic pain
Neuropathy, ataxia, and retinitis pigmentosa
neuroretinitis
Neurosarcoidosis
neuroschistosomiasis
neurotic disorder
Neutropenia
Neutropenic enterocolitis
Neutrophil-specific granule deficiency
Neutrophilia
Neutrophilic eccrine hidradenitis
nevoid basal cell carcinoma syndrome
Nevoid basal-cell carcinoma syndrome
Nevus
Nevus anemicus
Nevus flammeus nuchae
New daily persistent headache
newborn respiratory distress syndrome
Newcastle disease
Nezelof syndrome
Nickel allergy
Nicolaides–Baraitser syndrome
Nicotine dependence
Nicotine poisoning
Nicotine withdrawal
Niemann-Pick
Niemann-Pick disease
Niemann–Pick disease, SMPD1-associated
Niemann–Pick disease, type C
night blindness
Night eating syndrome
Night terror
Nightmare
Nightmare disorder
Nijmegen breakage syndrome
Nipple adenoma
Nipple discharge
Nitrogen narcosis
Nocardiosis
Nocturnal enuresis
Nocturnal sleep-related eating disorder
Nodding disease
nodular goiter
Nodular lymphocyte predominant Hodgkin's lymphoma
nodular nonsuppurative panniculitis
noma
Noma (disease)
nominal aphasia
Non-24-hour sleep–wake disorder
Non-alcoholic fatty liver disease
Non-celiac gluten sensitivity
Non-cirrhotic portal fibrosis
non-gestational choriocarcinoma
Non-gonococcal urethritis
Non-Hodgkin lymphoma
Non-Hodgkin's lymphoma
non-Langerhans-cell histiocytosis
non-small cell lung carcinoma
Non-small-cell lung carcinoma
Nonalcoholic fatty liver disease
Nonallergic rhinitis
Nonbacterial thrombotic endocarditis
Noncompaction cardiomyopathy
nonepidermolytic palmoplantar keratoderma
Nonulcer stomach pain
Nonunion
Nonvenereal endemic syphilis
Noonan syndrome
Noonan syndrome with multiple lentigines
Normal pressure hydrocephalus
Normal tension glaucoma
Norovirus infection
Norrie disease
Northeast blackout of 1965
Northern epilepsy syndrome
nose disease
Nosebleed
Notalgia paresthetica
Nuchal cord
Nummular dermatitis
nut allergy
Nutcracker esophagus
nutrition disease
nutritional deficiency disease
Nystagmus
Obesity
Obesity hypoventilation syndrome
obsessive-compulsive disorder
Obsessive-compulsive disorder (OCD)
obsessive-compulsive personality disorder
Obsessive–compulsive disorder
Obsessive–compulsive personality disorder
obsolete chronobiology disease
obsolete leukemoid reaction
Obstetric fistula
Obstructed labour
Obstructive lung disease
Obstructive sleep apnea
Obstructive uropathy
Occipital horn syndrome
Occipital neuralgia
Occupational asthma
Occupational burnout
occupational dermatitis
Occupational stress
Ochronosis
Ocular albinism type 1
ocular cancer
Ocular hypertension
ocular hypotension
Ocular ischemic syndrome
Ocular myasthenia
Ocular rosacea
Oculocerebrorenal syndrome
Oculodentodigital dysplasia
Oculogyric crisis
Oculomotor apraxia
Oculomotor nerve palsy
Oculopharyngeal muscular dystrophy
oesophagostomiasis
Ogden syndrome
Ogilvie syndrome
Oguchi disease
Ohtahara syndrome
Olecranon bursitis
olfactory nerve disease
olfactory neuroblastoma
Olfactory reference syndrome
Oligodendroglioma
Oligohydramnios
Oligomenorrhea
Oligospermia
Olivopontocerebellar atrophy
Omenn syndrome
Omental infarction
Omphalitis of newborn
Omphalocele
Omsk hemorrhagic fever
Onchocerciasis
Oncogenic osteomalacia
Onychogryphosis
Onycholysis
Onychomycosis
Oophoritis
open-angle glaucoma
Ophthalmodynia periodica
Ophthalmoparesis
ophthalmoplegia
opiate dependence
Opioid overdose
Opioid use disorder
Opisthorchiasis
Opitz G/BBB syndrome
Opportunistic infection
Oppositional defiant disorder (ODD)
Opsoclonus myoclonus syndrome
optic atrophy
optic disk drusen
Optic nerve glioma
Optic nerve hypoplasia
optic nerve neoplasm
Optic neuritis
Optic neuropathy
Optic papillitis
Oral cancer
Oral candidiasis
oral hairy leukoplakia
oral leukoedema
Oral lichen planus
Oral mucocele
Oral submucous fibrosis
Oral thrush
oral tuberculosis
orbital cancer
Orbital cellulitis
orbital disease
Orbital lymphoma
orbital plasma cell granuloma
Orchitis
Organic brain syndrome
Organophosphate poisoning
ornithine carbamoyltransferase deficiency
Ornithine transcarbamylase deficiency
ornithosis
Orofacial granulomatosis
Orofacial myological disorders
Orofaciodigital syndrome 1
orofaciodigital syndrome I
Oropharyngeal cancer
Oropouche fever
Orotic aciduria
Orthohantavirus
Orthostatic headache
Orthostatic hypertension
Orthostatic hypotension
Orthostatic hypotension (postural hypotension)
Orthostatic intolerance
Osgood-Schlatter disease
Osgood-Schlatter's disease
Osgood–Schlatter disease
Osmol gap
ossifying fibroma
osteitis fibrosa
Osteitis fibrosa cystica
Osteitis pubis
Osteoarthritis
Osteoblastoma
Osteochondritis dissecans
Osteochondroma
Osteochondrosis
Osteogenesis imperfecta
Osteoid osteoma
Osteomalacia
Osteomyelitis
osteonecrosis
Osteonecrosis of the jaw
Osteopenia
Osteopetrosis
Osteophyte
Osteopoikilosis
Osteoporosis
Osteoporotic bone marrow defect
Osteosarcoma
Osteosclerosis
ostertagiasis
Ostium primum atrial septal defect
Otic polyp
Otitis externa
Otitis externa in animals
Otitis media
Otodental syndrome
Otomycosis
Otosclerosis
Otospondylomegaepiphyseal dysplasia
Ototoxicity
Ovarian apoplexy
ovarian Brenner tumor
Ovarian cancer
Ovarian cyst
Ovarian cysts
Ovarian disease
Ovarian fibroma
Ovarian hyperstimulation syndrome
Ovarian pregnancy
Ovarian remnant syndrome
Ovarian torsion
Ovarian vein syndrome
Overactive bladder
Overflow incontinence
Overjet
overnutrition
Overweight
Ovine rinderpest
Oxycephaly
Oxygen toxicity
oxyphilic adenoma
Pacemaker failure
Pachygyria
Pachyonychia congenita
Paget's disease of bone
Paget's disease of the breast
Paget–Schroetter disease
Pain disorder
Painful intercourse (dyspareunia)
Palindromic rheumatism
Palisaded encapsulated neuroma
Pallister-Hall syndrome
Pallister–Hall syndrome
Pallister–Killian syndrome
Palmar erythema
palmoplantar keratosis
Palpable purpura
Palpitations
Panayiotopoulos syndrome
Pancoast tumor
Pancreas divisum
Pancreatic abscess
Pancreatic acinar metaplasia
Pancreatic cancer
Pancreatic cysts
pancreatic ductal carcinoma
pancreatic endocrine carcinoma
Pancreatic fistula
Pancreatic injury
Pancreatic mucinous cystic neoplasm
Pancreatic neuroendocrine tumor
Pancreatic pseudocyst
Pancreatitis
Pancreatoblastoma
Pancytopenia
PANDAS
Panic attack
Panic attacks and panic disorder
Panic disorder
Panniculitis
Panophthalmitis
Pantothenate kinase-associated neurodegeneration
panuveitis
PAPA syndrome
papillary adenocarcinoma
papillary adenoma
papillary carcinoma
papillary cystadenocarcinoma
Papillary fibroelastoma
papillary follicular thyroid adenocarcinoma
Papillary thyroid cancer
Papillary urothelial neoplasm of low malignant potential
Papilledema
Papillon-Lefevre disease
Papillon–Lefèvre syndrome
Papillorenal syndrome
Pappataci fever
Paracetamol poisoning
Paracoccidioidomycosis
Paraganglioma
Paragonimiasis
Paralysis
Parametritis
Paramyotonia congenita
paranasal sinus cancer
paranasal sinus disease
Paraneoplastic pemphigus
paraneoplastic polyneuropathy
Paraneoplastic syndrome
Paraneoplastic syndromes of the nervous system
Paranoia
Paranoid personality disorder
Paranoid schizophrenia
Paraovarian cyst
Paraphilia
Paraphimosis
Paraphrenia
Paraplegia
Paraproteinemia
Parapsoriasis
Parasitic disease
parasitic ectoparasitic infectious disease
parasitic helminthiasis infectious disease
parasitic protozoa infectious disease
Parathyroid adenoma
Parathyroid carcinoma
parathyroid gland disease
Paratuberculosis
Paratyphoid fever
Paresthesia
Parinaud's syndrome
Parkes Weber syndrome
Parkinson plus syndrome
Parkinson's disease
Parkinsonism
Paronychia
parotid disease
parotid gland cancer
Parotid tumors
Parotitis
parovarian cyst
Paroxysmal cold hemoglobinuria
Paroxysmal extreme pain disorder
Paroxysmal nocturnal hemoglobinuria
Paroxysmal nonkinesigenic dyskinesia
Paroxysmal supraventricular tachycardia
Paroxysmal sympathetic hyperactivity
Parry–Romberg syndrome
pars planitis
Parsonage–Turner syndrome
Partial androgen insensitivity syndrome
Partial anomalous pulmonary venous return
partial motor epilepsy
partial sensory epilepsy
partial third-nerve palsy
Parvovirus infection
PASLI disease
Pasteurellosis
Patau syndrome
Patella fracture
Patellar dislocation
Patellar tendinitis
Patellar tendon rupture
Patellofemoral pain syndrome
Patent ductus arteriosus
Patent ductus arteriosus (PDA)
patent foramen ovale
Pathologic fracture
pathological gambling
Pathological jealousy
Pattern hair loss
Patterson syndrome
Patulous Eustachian tube
Peach scab
Peanut allergy
Pearson syndrome
Pectus carinatum
Pectus excavatum
Pediatric acute-onset neuropsychiatric syndrome
Pediatric acute-onset neuropsychiatric syndrome (PANS)
Pediatric brain tumors
Pediculosis
Pediculosis corporis
Pediculosis pubis
Pedophilia
Pelger-Huet anomaly
Peliosis hepatis
Pelizaeus-Merzbacher disease
Pelizaeus–Merzbacher disease
Pellagra
Pellucid marginal degeneration
Pelvic floor dysfunction
Pelvic fracture
pelvic inflammatory disease
Pelvic inflammatory disease (PID)
Pelvic pain
Pemphigus
Pemphigus foliaceus
Pemphigus vulgaris
Pendred syndrome
Penetrating atherosclerotic ulcer
Penicillin allergy
Penile agenesis and testicular agenesis
Penile cancer
Penile fracture
Pentalogy of Cantrell
Pentasomy X
Peptic ulcer
Peptic ulcer disease
peptic ulcer perforation
Perforated eardrum
Perianal hematoma
Periapical cyst
periapical granuloma
periapical periodontitis
periarthritis
Pericardial effusion
pericardial tuberculosis
Pericarditis
Pericoronitis
Perimenopause
Perinatal asphyxia
perinatal necrotizing enterocolitis
perinephritis
Periodic fever, aphthous stomatitis, pharyngitis and adenitis
Periodic limb movement disorder
Periodic paralysis
Periodontal abscess
Periodontal disease
Periodontitis
Perioral dermatitis
Periorbital cellulitis
Periorbital puffiness
Periostitis
Peripartum cardiomyopathy
Peripheral artery disease
peripheral nerve sheath neoplasm
Peripheral nerve tumors
peripheral nervous system disease
peripheral nervous system neoplasm
Peripheral neuropathy
Peripheral ossifying fibroma
peripheral vascular disease
Peritoneal mesothelioma
Peritonitis
Peritonsillar abscess
perivascular epithelioid cell tumor
Perivascular epithelioid cell tumour
Periventricular leukomalacia
periventricular nodular heterotopia
Perlman syndrome
pernicious anemia
peroneal neuropathy
Peronospora hyoscyami f.sp. tabacina
peroxisomal disease
Persistent depressive disorder (dysthymia)
persistent fetal circulation syndrome
Persistent hyperplastic primary vitreous
Persistent left superior vena cava
Persistent Müllerian duct syndrome
Persistent thyroglossal duct
Persistent truncus arteriosus
Persistent vegetative state
Personality disorders
Pertussis
Pervasive developmental disorder
Pervasive developmental disorder not otherwise specified
Pes cavus
Pestalotiopsis palmarum
Pesticide poisoning
Pet allergy
petrositis
Peutz-Jeghers syndrome
Peutz–Jeghers syndrome
Peyronie's disease
Pfeiffer syndrome
PHACES Syndrome
phagocyte bactericidal dysfunction
Phantom eye syndrome
Phantom limb
Phantom pain
Phantom vibration syndrome
Pharyngitis
phencyclidine abuse
Phenylketonuria
Phenylketonuria (PKU)
Pheochromocytoma
Phimosis
Phlebitis
Phlebotomus fever
Phlegmasia alba dolens
Phobia
Phocomelia
Phosphene
Phosphofructokinase deficiency
phosphorus metabolism disease
Photic retinopathy
Photic sneeze reflex
photoallergic dermatitis
Photodermatitis
Photokeratitis
Photophobia
photosensitive trichothiodystrophy
photosensitivity disease
phototoxic dermatitis
Phyllodes tumor
Phytophotodermatitis
Piblokto
Pica (disorder)
pica disease
Pick's disease
Piebaldism
Pierre Robin syndrome
Pigmented villonodular synovitis
Pilocytic astrocytoma
Pilomatricoma
pilomatrixoma
Pilonidal cyst
Pilonidal disease
Pimple
Pinched nerve
Pinealoma
pineoblastoma
Pineocytoma
Pinguecula
Pink eye (conjunctivitis)
Pinta (disease)
pinta disease
Pinworm infection
Piriformis syndrome
Pitted keratolysis
Pitt–Hopkins syndrome
Pituitary adenoma
Pituitary apoplexy
pituitary cancer
Pituitary pars intermedia dysfunction
Pituitary tumors
pituitary-dependent Cushing's disease
Pityriasis alba
Pityriasis amiantacea
Pityriasis lichenoides chronica
Pityriasis lichenoides et varioliformis acuta
Pityriasis rosea
Pityriasis rubra pilaris
pityriasis versicolor
Placenta accreta
placenta disease
Placenta praevia
Placenta previa
Placental abruption
Placental disease
Placental insufficiency
Placental site trophoblastic tumor
Plague
Plague (disease)
Plantar fasciitis
Plantar fibromatosis
Plantar wart
Plantar warts
Plasma cell gingivitis
Plasma cell leukemia
plasma cell neoplasm
plasmacytic leukemia
Plasmacytoma
Plasmodium vivax malaria
Platelet storage pool deficiency
Pleomorphic adenoma
pleomorphic lipoma
Pleomorphic xanthoastrocytoma
pleural cancer
pleural disease
Pleural effusion
Pleural empyema
pleural tuberculosis
Pleurisy
Pleurothotonus
plexiform neurofibroma
Plica syndrome
Plummer–Vinson syndrome
pneumatosis cystoides intestinalis
Pneumaturia
Pneumococcal infection
Pneumoconiosis
Pneumocystis pneumonia
Pneumocystosis
Pneumomediastinum
pneumonia
pneumonic plague
Pneumonitis
Pneumopericardium
Pneumoperitoneum
Pneumothorax
POEMS syndrome
Poikiloderma
Poikiloderma vasculare atrophicans
Poison ivy rash
Poland syndrome
Polio
Poliomyelitis
Polyarteritis nodosa
Polyarthritis
Polychromasia
Polycystic kidney disease
Polycystic ovary syndrome
Polycystic ovary syndrome (PCOS)
Polycythemia
Polycythemia vera
Polyhydramnios
Polymicrogyria
Polymorphous light eruption
Polymyalgia rheumatica
Polymyositis
Polyneuropathy
Polyradiculoneuropathy
Polyuria
pompholyx
Poor color vision
Poor ovarian reserve
Porcelain gallbladder
Porencephaly
Porokeratosis
Porphyria
Porphyria cutanea tarda
Port-wine stain
Portal hypertension
Portal hypertensive gastropathy
Post herniorraphy pain syndrome
Post-concussion syndrome
Post-dural-puncture headache
Post-Ebola virus syndrome
Post-nasal drip
Post-polio syndrome
post-thrombotic syndrome
Post-transplant lymphoproliferative disorder
Post-traumatic epilepsy
post-traumatic stress disorder
Post-traumatic stress disorder (PTSD)
post-vaccinal encephalitis
Postcholecystectomy syndrome
posterior cerebral artery infarction
Posterior cruciate ligament injury
Posterior reversible encephalopathy syndrome
Posterior urethral valve
posterior uveitis
Posterior vaginal prolapse (rectocele)
Posterior vitreous detachment
postgastrectomy syndrome
Postherpetic neuralgia
Postoperative fever
Postoperative nausea and vomiting
Postorgasmic illness syndrome
Postpartum bleeding
Postpartum depression
Postpartum infections
Postpartum preeclampsia
Postpartum psychosis
Postpartum thyroiditis
Postpericardiotomy syndrome
postpoliomyelitis syndrome
Postterm pregnancy
Posttraumatic stress disorder
Postural orthostatic tachycardia syndrome
Potomac Horse Fever
Pott disease
Potter sequence
Pouchitis
Powassan encephalitis
Prader-Willi syndrome
Prader–Willi syndrome
Pre-eclampsia
Preauricular sinus and cyst
Precancerous condition
Precocious puberty
Precordial catch syndrome
precursor lymphoblastic lymphoma/leukemia
Prediabetes
prediabetes syndrome
Preeclampsia
Pregnancy
Premature atrial contraction
Premature birth
Premature ejaculation
premature menopause
Premature ovarian failure
Premature rupture of membranes
Premature thelarche
Premature ventricular contraction
Premature ventricular contractions (PVCs)
Premenstrual dysphoric disorder
Premenstrual syndrome
Premenstrual syndrome (PMS)
Prepatellar bursitis
preretinal fibrosis
Presbycusis
Presbylarynx
Presbyopia
Prescription drug abuse
Pressure ulcer
Presumed ocular histoplasmosis syndrome
Preterm birth
Preterm labor
Pretibial myxedema
Pretzel syndrome
Priapism
Primary aldosteronism
Primary biliary cholangitis
primary biliary cirrhosis
Primary central nervous system lymphoma
primary cerebellar degeneration
Primary ciliary dyskinesia
Primary effusion lymphoma
primary hyperaldosteronism
primary hyperoxaluria
Primary hyperparathyroidism
Primary hypertrophic osteoathropathy
Primary immunodeficiency
primary immunodeficiency disease
Primary lateral sclerosis
Primary lateral sclerosis (PLS)
Primary progressive aphasia
Primary sclerosing cholangitis
Priming (steam locomotive)
Primrose syndrome
Prinzmetal's angina
prion disease
Proctalgia fugax
Proctitis
Proctocolitis
Progeria
Prognathism
Progressive bulbar palsy
Progressive familial intrahepatic cholestasis
Progressive inflammatory neuropathy
Progressive multifocal leukoencephalopathy
Progressive muscular atrophy
Progressive myoclonus epilepsy
Progressive supranuclear palsy
Progressive transformation of germinal centres
Prolactinoma
Prolidase deficiency
proliferative vitreoretinopathy
Prolymphocytic leukemia
Pronator teres syndrome
Propionic acidemia
Prosector's wart
Prosopagnosia
Prostate cancer
prostate disease
prostatic adenoma
Prostatitis
Protein C deficiency
Protein losing enteropathy
Protein S deficiency
protein-energy malnutrition
protein-losing enteropathy
proteinuria
Proteus syndrome
prothrombin deficiency
Prothrombin G20210A
Protrusio acetabuli
Proventricular dilatation disease
Proximal 18q-
Proximal diabetic neuropathy
Proximal femoral focal deficiency
Prune belly syndrome
Prurigo nodularis
Pruritic urticarial papules and plaques of pregnancy
Pruritus ani
Pseudo-Cushing's syndrome
Pseudo-Hurler polydystrophy
Pseudoaneurysm
Pseudoangiomatous stromal hyperplasia
Pseudobulbar affect
Pseudobulbar palsy
Pseudoexfoliation syndrome
Pseudofolliculitis barbae
Pseudogout
Pseudohyperaldosteronism
Pseudohypoparathyroidism
Pseudolymphoma
Pseudomembranous colitis
Pseudomyxoma peritonei
Pseudoporphyria
Pseudopseudohypoparathyroidism
pseudotumor cerebri
Pseudovaginal perineoscrotal hypospadias
Pseudoxanthoma elasticum
Psittacosis
Psoriasis
Psoriatic arthritis
Psoriatic onychodystrophy
Psychasthenia
Psychogenic amnesia
Psychogenic non-epileptic seizure
Psychological trauma
Psychomotor agitation
Psychomotor retardation
Psychoorganic syndrome
Psychopathy
Psychosis
Pterygium (conjunctiva)
ptosis
Ptosis (breasts)
Ptosis (eyelid)
Pubic lice (crabs)
Pulled elbow
Pulmonary alveolar proteinosis
Pulmonary atresia
Pulmonary atresia with intact ventricular septum
Pulmonary atresia with ventricular septum defect
pulmonary blastoma
pulmonary coin lesion
Pulmonary consolidation
Pulmonary contusion
Pulmonary edema
Pulmonary embolism
Pulmonary fibrosis
Pulmonary heart disease
Pulmonary hemorrhage
Pulmonary hypertension
Pulmonary hypoplasia
Pulmonary insufficiency
Pulmonary interstitial emphysema
Pulmonary laceration
pulmonary plasma cell granuloma
pulmonary sarcoidosis
pulmonary sclerosing hemangioma
Pulmonary sequestration
pulmonary subvalvular stenosis
pulmonary tuberculosis
Pulmonary valve stenosis
Pulmonary venoocclusive disease
Pulmonary-renal syndrome
Pulpitis
Pulseless electrical activity
Pulsus bigeminus
Pulsus paradoxus
pupil disease
Pure autonomic failure
Pure red cell aplasia
pure red-cell aplasia
Purine nucleoside phosphorylase deficiency
Purpura
Purpura fulminans
Purtscher's retinopathy
pustulosis of palm and sole
Pyaemia
Pycnodysostosis
pyelitis
Pyelonephritis
Pyloric stenosis
Pyoderma
Pyoderma gangrenosum
Pyogenic granuloma
Pyogenic liver abscess
Pyometra
Pyomyositis
Pyonephrosis
Pyotraumatic dermatitis
pyridoxine deficiency anemia
Pyromania
Pyruvate carboxylase deficiency
pyruvate carboxylase deficiency disease
pyruvate decarboxylase deficiency
Pyruvate dehydrogenase deficiency
Pyruvate kinase deficiency
Q fever
Quadriceps tendon rupture
Quadricuspid aortic valve
Quebec platelet disorder
Rabies
Rabson–Mendenhall syndrome
Rachischisis
radial nerve lesion
Radial neuropathy
Radial tunnel syndrome
Radiation burn
Radiation enteropathy
Radiation retinopathy
Radiation sickness
Radiculopathy
Rainscald
Ramsay Hunt syndrome
Ramsay Hunt syndrome type 1
Ramsay Hunt syndrome type 2
Ranula
Rapid eye movement sleep behavior disorder
Rapidly progressive glomerulonephritis
Rasmussen's encephalitis
Rat-bite fever
Raynaud disease
Raynaud syndrome
Raynaud's disease
Reactive arthritis
Reactive attachment disorder
Reactive gastropathy
Reactive hypoglycemia
Rebound headaches
Receptive aphasia
Rectal cancer
rectal disease
Rectal foreign body
rectal neoplasm
Rectal prolapse
Rectocele
Rectovaginal fistula
Recurrent airway obstruction
Recurrent breast cancer
Recurrent corneal erosion
recurrent hypersomnia
Recurrent miscarriage
Recurrent pyogenic cholangitis
Red eye (medicine)
Red-eye effect
Refeeding syndrome
reflex epilepsy
reflex sympathetic dystrophy
Reflex syncope
Reflux nephropathy
Refractive error
Refsum disease
Reinke's edema
Reis–Bucklers corneal dystrophy
Relapsing fever
Relapsing polychondritis
relapsing-remitting multiple sclerosis
REM sleep behavior disorder
renal artery obstruction
Renal artery stenosis
Renal cell carcinoma
Renal colic
Renal cortical necrosis
Renal glycosuria
renal hypertension
Renal medullary fibroma
Renal osteodystrophy
Renal papillary necrosis
renal tuberculosis
renal tubular transport disease
Renal vein thrombosis
Renovascular hypertension
Repetitive strain injury
Respiratory acidosis
Respiratory alkalosis
Respiratory arrest
Respiratory disease
Respiratory failure
Respiratory syncytial virus (RSV)
respiratory syncytial virus infectious disease
Respiratory tract infection
Restenosis
Restless legs syndrome
Restrictive cardiomyopathy
Restrictive lung disease
Reticular dysgenesis
reticulosarcoma
retinal degeneration
Retinal detachment
retinal disease
Retinal diseases
retinal drusen
Retinal haemorrhage
Retinal migraine
retinal perforation
retinal vasculitis
retinal vein occlusion
Retinitis
Retinitis pigmentosa
Retinoblastoma
Retinopathy
Retinopathy of prematurity
Retinoschisis
Retractile testicle
retrocochlear disease
Retrograde amnesia
Retrograde ejaculation
Retrolisthesis
retroperitoneal cancer
Retroperitoneal fibrosis
Retropharyngeal abscess
Retroverted uterus
Rett syndrome
Reversible cerebral vasoconstriction syndrome
Reye syndrome
Reye's syndrome
Rh disease
Rh isoimmunization
rhabdoid cancer
Rhabdomyolysis
Rhabdomyosarcoma
Rheumatic fever
Rheumatism
Rheumatoid arthritis
Rheumatoid lung disease
Rheumatoid pleuritis
Rheumatology
rhinitis
Rhinitis medicamentosa
Rhinophyma
Rhinoscleroma
Rhinosporidiosis
Rhizomelic chondrodysplasia punctata
Rhythmic movement disorder
Rib fracture
Ribose-5-phosphate isomerase deficiency
Rickets
Rickettsialpox
Rickettsiosis
Rift Valley fever
Right axis deviation
Right bundle branch block
Right ventricular hypertrophy
Riley-Day syndrome
Ring chromosome 20 syndrome
Ringbone
Ringworm (body)
Ringworm (scalp)
Ritter's disease
Roberts syndrome
Robinow syndrome
Rocky Mountain spotted fever
Rolandic epilepsy
root resorption
Rosacea
Rosai–Dorfman disease
Roseola
Ross River fever
Rosselli–Gulienetti syndrome
Rotator cuff injury
Rotator cuff tear
Rotaviral gastroenteritis
Rotavirus
Rothmund-Thomson syndrome
Rothmund–Thomson syndrome
Rotor syndrome
Round ligament pain
Roussy–Lévy syndrome
Rubella
Rubeosis iridis
Rubinstein-Taybi syndrome
Rubinstein–Taybi syndrome
Rud syndrome
rumination disorder
Rumination syndrome
Runner's diarrhea
Ruptured eardrum (perforated eardrum)
Ruptured spleen
Ruzicka Goerz Anton syndrome
S-form
Saber shin
Sack–Barabas syndrome
Sacrococcygeal teratoma
Sacroiliitis
Saethre–Chotzen syndrome
sagittal sinus thrombosis
Sakati–Nyhan–Tisdale syndrome
Salicylate poisoning
Salicylate sensitivity
Salivary duct carcinoma
Salivary duct stricture
salivary gland adenoid cystic carcinoma
Salivary gland tumors
Salivary gland tumour
Salmon poisoning disease
Salmonella infection
Salmonellosis
Salpingitis
Salpingitis isthmica nodosa
Samoyed hereditary glomerulopathy
Sandhoff disease
Sandifer syndrome
Sanfilippo syndrome
Sanitary sewer overflow
SAPHO syndrome
sarcocystosis
Sarcoidosis
Sarcoma
Sarcopenia
Sarcopenic obesity
Saree cancer
Savant syndrome
Say–Meyer syndrome
Scabies
scalp dermatosis
Scalp–ear–nipple syndrome
Scanning speech
Scaphoid fracture
Scapular fracture
Scarlet fever
Scarring hair loss
Schamberg disease
Schatzki ring
Scheuermann's disease
Schindler disease
Schistosomiasis
Schizencephaly
Schizoaffective disorder
Schizoid personality disorder
Schizophrenia
Schizophreniform disorder
Schizotypal personality disorder
Schmorl's nodes
Schnitzler syndrome
Schwannoma
Schwannomatosis
sciatic neuropathy
Sciatica
Scimitar syndrome
Scintillating scotoma
scirrhous adenocarcinoma
scleral disease
Scleredema
scleredema adultorum
Scleritis
Scleroderma
Scleromyositis
Scoliosis
Scombroid food poisoning
Scorpion sting
Scotoma
scrapie
screw worm infectious disease
Scrotal masses
Scrub typhus
Scurvy
Sea star wasting disease
sea-blue histiocyte syndrome
Seabather's eruption
Seasonal affective disorder
Seasonal affective disorder (SAD)
Seaver Cassidy syndrome
sebaceous adenocarcinoma
Sebaceous cyst
sebaceous gland neoplasm
seborrheic dermatitis
seborrheic infantile dermatitis
Seborrheic keratosis
Seborrhoeic dermatitis
Seckel syndrome
Second-degree atrioventricular block
Secondary hyperparathyroidism
Secondary hypertension
secondary hypertrophic osteoarthropathy
secondary Parkinson disease
secondary progressive multiple sclerosis
Secondary sclerosing cholangitis
Segawa Syndrome
Seizures
Selective immunoglobulin A deficiency
Selective mutism
Selenium deficiency
Self-defeating personality disorder
Self-harm
Self-injury/cutting
Self-neglect
Seminoma
Sensorineural hearing loss
sensory peripheral neuropathy
Sensory processing disorder
Separated shoulder
Separation anxiety disorder
Sepsis
Septic arthritis
Septic shock
Septo-optic dysplasia
septooptic dysplasia
Serositis
Serotonin syndrome
Serous cystadenocarcinoma
Serpentine fibula-polycystic kidney syndrome
Serpiginous choroiditis
Sertoli cell tumor
Sertoli cell tumour
Sertoli cell-only syndrome
Sertoli-Leydig cell tumor
Serum sickness
Sessile serrated adenoma
setariasis
Sever's disease
Severe acute respiratory syndrome
Severe acute respiratory syndrome (SARS)
sex cord-gonadal stromal tumor
Sex cord–gonadal stromal tumour
sex differentiation disease
Sex headaches
Sexual dysfunction
Sexual fetishism
Sexual headache
sexual masochism
sexual sadism
Sexually induced sneezing
Sexually transmitted diseases
Sexually transmitted infection
Sezary's disease
Shaken baby syndrome
Sheehan's syndrome
Shellfish allergy
Shift work sleep disorder
Shigella infection
Shigellosis
Shin splints
Shingles
Shock (circulatory)
Short bowel syndrome
Short QT syndrome
Short stature
SHORT syndrome
Short-chain acyl-coenzyme A dehydrogenase deficiency
Shoulder dystocia
Shoulder presentation
Shwachman–Diamond syndrome
Shwartzman phenomenon
Sialadenitis
Sialidosis
Sialolithiasis
Sialuria
sick building syndrome
Sick sinus syndrome
sickle cell anemia
Sickle cell disease
Sickle cell trait
Sickle cell-beta thalassemia
Sickle-cell disease
Side stitch
Sidebone
Sideroblastic anemia
Siderosis
sigmoid disease
sigmoid neoplasm
signet ring cell adenocarcinoma
Signet ring cell carcinoma
Silent stroke
Silicosis
silo filler's disease
Silver-Russell syndrome
Silver–Russell syndrome
Simpson–Golabi–Behmel syndrome
Simultanagnosia
Sinoatrial block
Sinonasal undifferentiated carcinoma
Sinus headaches
Sinus tachycardia
Sinusitis
Sitosterolemia
Situs inversus
Sixth nerve palsy
Sjogren's syndrome
Sjogren-Larsson syndrome
Sjögren syndrome
Sjögren–Larsson syndrome
Skeletal fluorosis
skeletal tuberculosis
skin benign neoplasm
Skin cancer
skin disease
Skin infection
Skin tag
skull base neoplasm
skull cancer
SLAP tear
Sleep apnea
Sleep apnea, central
Sleep apnea, obstructive
Sleep deprivation
Sleep sex
Sleep terrors (night terrors)
Sleep-related eating disorder
sleeping sickness
Sleepwalking
Slipped capital femoral epiphysis
Sly syndrome
Small bowel prolapse (enterocele)
small cell sarcoma
Small fiber peripheral neuropathy
Small for gestational age
Small intestinal bacterial overgrowth
Small vessel disease
Small-cell carcinoma
Smallpox
Smith-Lemli-Opitz syndrome
Smith–Fineman–Myers syndrome
Smith–Lemli–Opitz syndrome
Smith–Magenis syndrome
Smoke inhalation
smooth muscle tumor
Snakebite
Snap oversteer
Snapping hip syndrome
Sneddon syndrome
Sneddon's syndrome
Snoring
Social anxiety disorder
social phobia
Sodoku
sodoku disease
Soft tissue injury
Soft tissue sarcoma
Soft-tissue sarcoma
Software brittleness
Solar urticaria
Solitary fibrous tumor
Solitary pulmonary nodule
Solitary rectal ulcer syndrome
Somatic symptom disorder
Somatosensory disorder
Somatostatinoma
Somnolence
Sore throat
Sotos syndrome
Southeast Asian haze
Southern corn leaf blight
Southern tick-associated rash illness
Soy allergy
Sparganosis
Spasmodic dysphonia
Spasmodic torticollis
Spastic diplegia
Spasticity
Specific phobias
Spectrophobia
Speech disorder
spermatic cord torsion
Spermatocele
sphenoid sinusitis
Sphenoid wing meningioma
Sphincter of Oddi dysfunction
sphingolipidosis
Spider angioma
Spider bite
Spider bites
Spina bifida
Spinal and bulbar muscular atrophy
Spinal arteriovenous malformation (AVM)
spinal cancer
Spinal cord compression
spinal cord disease
Spinal cord injury
Spinal cord tumor
Spinal disc herniation
Spinal headaches
spinal meningioma
Spinal muscular atrophies
Spinal muscular atrophy
Spinal stenosis
Spinal tumor
Spindle cell sarcoma
Spinocerebellar ataxia
Spinocerebellar ataxia type 6
Spinocerebellar ataxia type-13
Spins
spleen cancer
Splenic disease
Splenic infarction
Splenic injury
Splenic marginal zone lymphoma
splenic tuberculosis
Splenomegaly
Spondyloarthropathy
Spondylocostal dysostosis
Spondyloepimetaphyseal dysplasia, Pakistani type
Spondyloepimetaphyseal dysplasia, Strudwick type
Spondyloepiphyseal dysplasia congenita
Spondylolisthesis
Spondylolysis
Spondylosis
Spontaneous bacterial peritonitis
Spontaneous cerebrospinal fluid leak
Spontaneous coronary artery dissection
Spontaneous coronary artery dissection (SCAD)
spontaneous ocular nystagmus
Sporotrichosis
Spot blotch (barley)
Spot blotch (wheat)
Sprain
Sprained ankle
Sprains and strains
Squamous cell carcinoma
Squamous cell carcinoma of the skin
squamous cell neoplasm
Squamous-cell thyroid carcinoma
Squib load
St. Elmo's fire
St. Louis encephalitis
Stage 4 prostate cancer
Staph infections
Staphylococcal enteritis
Staphylococcal scalded skin syndrome
staphyloenterotoxemia
Stargardt disease
Starvation
Stasis dermatitis
status asthmaticus
Status epilepticus
steatitis
Steatorrhea
Stem rust
Stenosing tenosynovitis
Stenosis
Stenosis of uterine cervix
Stereotypic movement disorder
Sternal fracture
Steroid rosacea
Stevens-Johnson syndrome
Stevens–Johnson syndrome
Stickler syndrome
Stiff person syndrome
Stiff-Person syndrome
Stillbirth
Stimmler syndrome
Stimulant psychosis
Stomach cancer
Stomach disease
Stomach polyps
Stomatitis
Stomatitis nicotina
Strabismus
Strain (injury)
Strangles
Strep throat
Streptococcal pharyngitis
Stress fracture
Stress fractures
Stress in medical students
Stress incontinence
Stress ulcer
Stretch marks
striatonigral degeneration
Stroke
Strongyloidiasis
Struma ovarii
Stunted growth
Stupor
Sturge–Weber syndrome
Stuttering
Sty
Stye
Subacromial bursitis
Subacute bacterial endocarditis
Subacute combined degeneration of spinal cord
subacute delirium
Subacute sclerosing panencephalitis
Subacute thyroiditis
Subarachnoid hemorrhage
Subclavian steal syndrome
Subconjunctival hemorrhage
Subconjunctival hemorrhage (broken blood vessel in eye)
Subcortical ischemic depression
Subcutaneous emphysema
Subdural empyema
Subdural hematoma
Subdural hygroma
Subependymal giant cell astrocytoma
subependymal glioma
Subependymoma
Subgaleal hemorrhage
Subinvolution
submandibular gland disease
Subprime mortgage crisis
Substance abuse
Substance dependence
Substance-induced psychosis
Substance-related disorder
substernal goiter
Subungual hematoma
subvalvular aortic stenosis
Succinic semialdehyde dehydrogenase deficiency
Sucrose intolerance
Sudden acquired retinal degeneration (disease)
Sudden acquired retinal degeneration syndrome
Sudden arrhythmic death syndrome
Sudden cardiac arrest
Sudden infant death syndrome (SIDS)
Suicidal ideation
Suicide and suicidal thoughts
Suicide in South Korea
Sulfhemoglobinemia
Sulfuric acid poisoning
Sun allergy
Sunburn
Sundowning
superficial mycosis
Superficial spreading melanoma
Superheating
Superior canal dehiscence syndrome
Superior mesenteric artery syndrome
Superior oblique myokymia
Superior vena cava syndrome
suppression amblyopia
suppurative otitis media
suppurative periapical periodontitis
suppurative uveitis
supratentorial cancer
supravalvular aortic stenosis
Supraventricular tachycardia
Surra
survival motor neuron spinal muscular atrophy
Susac's syndrome
Suspension trauma
Susto
swayback
sweat gland neoplasm
Sweating and body odor
Sweating sickness
Sweet itch
Sweet's syndrome
Swelling (medical)
Swimmer's ear
Swimmer's itch
Swimming-induced pulmonary edema
Swine flu (H1N1 flu)
Swine influenza
Swollen knee
Swollen lymph nodes
Sydenham's chorea
Sympathetic ophthalmia
Symphysis pubis dysfunction
Syndactyly
Syndrome of inappropriate antidiuretic hormone secretion
Syndrome of subjective doubles
Synesthesia
Synkinesis
synostosis
Synovial chondromatosis
Synovial osteochondromatosis
Synovial sarcoma
Synovitis
Syphilis
Syringoma
Syringomyelia
Systemic lupus erythematosus
systemic mastocytosis
Systemic primary carnitine deficiency
Systemic scleroderma
Systemic-onset juvenile idiopathic arthritis
systolic heart failure
Sézary disease
T-cell leukemia
T-cell prolymphocytic leukemia
Tabes dorsalis
Tachycardia
Tachycardia-induced cardiomyopathy
Taeniasis
Taijin kyofusho
Takayasu's arteritis
Takotsubo cardiomyopathy
Talon cusp
Tangier disease
Tapeworm infection
TAR syndrome
Tardive dyskinesia
Tarlov cyst
Tarsal tunnel syndrome
Tauopathy
Tay-Sachs disease
Tay-Sachs disease AB variant
Tay–Sachs disease
Tear of meniscus
Teen depression
Telangiectasia
telangiectasis
temporal arteritis
Temporal lobe epilepsy
Temporal lobe seizure
Temporomandibular joint dysfunction
Tendinitis
Tendinosis
Tennis elbow
Tenosynovitis
Tension headache
teratocarcinoma
Teratoma
Testicular cancer
testicular disease
Testicular torsion
Tetanus
Tethered spinal cord syndrome
Tetralogy of Fallot
Tetraplegia
Tetrasomy X
thalamic disease
Thalassemia
Thanatophoric dysplasia
theileriasis
Theobromine poisoning
Thiamine deficiency
Thin basement membrane disease
Third-degree atrioventricular block
Thoracic aorta injury
Thoracic aortic aneurysm
thoracic cancer
Thoracic outlet syndrome
Throat cancer
Thromboangiitis obliterans
Thrombocythemia
Thrombocytopenia
Thrombocytopenic purpura
Thrombocytosis
Thrombophilia
Thrombophlebitis
Thrombosis
Thrombotic microangiopathy
Thrombotic thrombocytopenic purpura
Thumb arthritis
Thunderclap headache
Thunderclap headaches
Thygeson's superficial punctate keratopathy
Thymoma
thymus cancer
Thyroglossal cyst
Thyroid adenoma
Thyroid cancer
thyroid crisis
Thyroid disease
Thyroid dyshormonogenesis
thyroid gland disease
Thyroid hormone resistance
thyroid hormone resistance syndrome
Thyroid neoplasm
Thyroid nodule
Thyroid nodules
Thyroid storm
Thyroiditis
Thyrotoxic myopathy
Thyrotoxic periodic paralysis
thyrotoxicosis
tibial neuropathy
Tibial plateau fracture
Tic
Tic disorder
Tick infestation
Tick paralysis
Tick-borne encephalitis
Tietze syndrome
Timothy syndrome
Tinea barbae
Tinea capitis
Tinea corporis
Tinea cruris
tinea favosa
Tinea versicolor
Tinnitus
Tip of the tongue
TMJ disorders
TNF receptor associated periodic syndrome
Todd's paresis
Toe walking
Toe walking in children
tolosa-hunt syndrome
Tolosa–Hunt syndrome
tongue cancer
Tongue disease
tongue squamous cell carcinoma
tonsil cancer
Tonsillitis
Tooth abscess
tooth agenesis
Tooth ankylosis
Tooth decay
tooth disease
tooth erosion
Tooth mobility
Tooth resorption
Toothache
Torn meniscus
Torsades de pointes
Torsion dystonia
Torticollis
Total anomalous pulmonary venous return
Tourette syndrome
Townes–Brocks syndrome
toxascariasis
Toxic and nutritional optic neuropathy
Toxic encephalopathy
Toxic epidermal necrolysis
Toxic hepatitis
Toxic megacolon
Toxic multinodular goitre
Toxic shock syndrome
toxicodendron dermatitis
Toxocariasis
Toxoplasmosis
trachea leiomyoma
tracheal disease
tracheal stenosis
Tracheitis
Tracheobronchial injury
Tracheobronchomalacia
Tracheoesophageal fistula
Trachoma
Traction alopecia
Trade winds
Traffic collision
Traffic congestion
Transaldolase deficiency
Transfusion associated circulatory overload
Transfusion-associated graft versus host disease
Transfusion-associated graft-versus-host disease
Transfusion-related acute lung injury
Transient acantholytic dermatosis
transient cerebral ischemia
Transient global amnesia
Transient ischemic attack
Transient ischemic attack (TIA)
Transient synovitis
Transient tachypnea of the newborn
Transitional cell carcinoma
Transmissible mink encephalopathy
Transposition of the great arteries
Transposition of the great vessels
Transverse myelitis
transvestism
Traumatic aortic rupture
Traumatic asphyxia
Traumatic brain injury
Traveler's diarrhea
Treacher Collins syndrome
Tree nut allergy
Trench fever
Trench foot
Triangular alopecia
Trichilemmal cyst
Trichinosis
Tricho-hepato-enteric syndrome
Trichobacteriosis axillaris
Trichodysplasia spinulosa
Trichomoniasis
Trichomycosis axillaris
Trichophagia
trichorhinophalangeal syndrome type II
Trichorrhexis nodosa
trichostrongyloidiasis
trichostrongylosis
Trichothiodystrophy
Trichotillomania
Trichotillomania (hair-pulling disorder)
Tricho–dento–osseous syndrome
Trichuriasis
Tricuspid atresia
Tricuspid insufficiency
tricuspid valve insufficiency
tricuspid valve prolapse
Tricuspid valve regurgitation
Tricuspid valve stenosis
Tricyclic antidepressant overdose
Trifascicular block
Trigeminal neuralgia
Trigger finger
Trigonocephaly
Trimethylaminuria
Triple X syndrome
Triple-A syndrome
Triploid syndrome
Trochleitis
trombiculiasis
Trophoblastic neoplasm
Tropical spastic paraparesis
Tropical sprue
Tropical ulcer
True hermaphroditism
Truncus arteriosus
Trypanosomiasis
Trypophobia
Tubal factor infertility
Tuberculoid leprosy
Tuberculosis
Tuberculous cervical lymphadenitis
Tuberculous dactylitis
Tuberculous lymphadenitis
Tuberculous meningitis
tuberculous peritonitis
Tuberous sclerosis
Tubo-ovarian abscess
Tubulointerstitial nephritis and uveitis
Tularemia
Tumor lysis syndrome
Tumors of the hematopoietic and lymphoid tissues
Tungiasis
Tunnel vision
Turner syndrome
Twin-to-twin transfusion syndrome
Tympanosclerosis
Type 1 diabetes
Type 1 diabetes in children
type 1 diabetes mellitus
Type 2 diabetes
Type 2 diabetes in children
type 2 diabetes mellitus
Type I tyrosinemia
Type III hypersensitivity
Typhoid fever
Typhus
Typical pulmonary carcinoid tumour
tyrosinemia
Uhl anomaly
Ulcerative colitis
Ullrich congenital muscular dystrophy
Ulnar collateral ligament injury of the thumb
Ulnar nerve entrapment
Ulnar neuropathy
Umbilical cord prolapse
Umbilical hernia
Uncombable hair syndrome
Undescended testicle
Undifferentiated connective tissue disease
Undifferentiated pleomorphic sarcoma
Unhappy triad
Unicornuate uterus
Unilateral hearing loss
United States military veteran suicide
Unstable angina
Unverricht-Lundborg syndrome
Upper airway resistance syndrome
Upper gastrointestinal bleeding
Upper motor neuron lesion
Upper respiratory tract infection
Upshaw–Schulman syndrome
Urachal cancer
Urachal cyst
Urbach–Wiethe disease
urea cycle disorder
Uremia
Uremic pericarditis
ureter cancer
Ureteral cancer
Ureteral obstruction
Ureterocele
urethral benign neoplasm
Urethral cancer
urethral disease
urethral obstruction
Urethral stricture
Urethral syndrome
Urethritis
urinary bladder cancer
Urinary incontinence
urinary system benign neoplasm
Urinary tract infection
Urinary tract infection (UTI)
Urine color
Urinoma
Urocanic aciduria
Urofacial syndrome
urogenital tuberculosis
Urticaria pigmentosa
Urticarial vasculitis
Urushiol-induced contact dermatitis
Usher syndrome
Usual interstitial pneumonia
uterine cancer
uterine disease
Uterine fibroid
Uterine fibroids
Uterine incarceration
uterine inversion
Uterine malformation
Uterine polyps
Uterine prolapse
Uterine rupture
Uterine septum
Uterine serous carcinoma
Uterus didelphys
Utilization behavior
uveal cancer
uveal disease
Uveitis
uveoparotid fever
Vaccine-associated sarcoma
vaccinia
VACTERL association
Vaginal agenesis
Vaginal atresia
Vaginal atrophy
Vaginal cancer
Vaginal discharge
vaginal disease
Vaginal yeast infection
Vaginismus
Vaginitis
Vagus nerve disease
Valley fever
Van der Woude syndrome
Van Wyk and Grumbach syndrome
Variant angina
variant Creutzfeldt-Jakob disease
Varicocele
Varicose veins
Variegate porphyria
Vasa praevia
vascular cancer
Vascular dementia
Vascular disease
vascular hemostatic disease
Vascular ring
Vascular rings
vascular skin disease
Vasculitis
vasculogenic impotence
Vasoconstriction
vasomotor rhinitis
Vasoplegic syndrome
Vasovagal syncope
Velopharyngeal inadequacy
Venezuelan equine encephalitis
Venezuelan hemorrhagic fever
venous insufficiency
Venous leak
Venous thrombosis
Venous ulcer
Ventilator-associated lung injury
Ventilator-associated pneumonia
Ventricular aneurysm
Ventricular fibrillation
Ventricular hypertrophy
Ventricular septal defect
Ventricular tachycardia
Ventriculitis
Vernal keratoconjunctivitis
Verrucous carcinoma
Vertebral artery dissection
Vertebral tumor
Vertebrobasilar insufficiency
Vertical root fracture
Vertically transmitted infection
Very long-chain acyl-coenzyme A dehydrogenase deficiency
Vesicointestinal fistula
Vesicoureteral reflux
vestibular disease
vestibular neuronitis
Vestibular schwannoma
Vestibulocerebellar syndrome
vestibulocochlear nerve disease
Vici syndrome
Villoglandular adenocarcinoma of the cervix
VIPoma
Viral encephalitis
Viral gastroenteritis
Viral hemorrhagic fever
Viral hemorrhagic fevers
Viral hemorrhagic septicemia
Viral hepatitis
viral infectious disease
Viral meningitis
Viral pneumonia
Visceral leishmaniasis
visual epilepsy
Visual extinction
Visual impairment
Visual release hallucinations
Visuospatial dysgnosia
Vitamin A deficiency
Vitamin B12 deficiency
Vitamin B12 deficiency anemia
Vitamin D deficiency
Vitamin deficiency anemia
Vitamin E deficiency
Vitamin K deficiency
vitamin K deficiency hemorrhagic disease
Vitelliform macular dystrophy
Vitiligo
vitreous detachment
Vitreous hemorrhage
Vocal cord dysfunction
Vocal cord nodule
Vocal cord paralysis
Vocal cord paresis
Vocal fold nodule
Vocal fold paresis
Vocal loading
Vogt-Koyanagi-Harada disease
Voice disorders
Volkmann contracture
Volkmann's contracture
Volvulus
Von Hippel–Lindau disease
Von Willebrand disease
von Willebrand's disease
von Willebrand's disease 1
von Willebrand's disease 2
von Willebrand's disease 3
Voyeurism
vulva cancer
Vulvar cancer
vulvar disease
Vulvar intraepithelial neoplasia
vulvitis
Vulvodynia
vulvovaginal candidiasis
vulvovaginitis
Waardenburg syndrome
Waardenburg's syndrome
WAGR syndrome
Waldenstrom macroglobulinemia
Waldenström's macroglobulinemia
Walker–Warburg syndrome
Wandering spleen
Warfarin necrosis
Warm antibody autoimmune hemolytic anemia
Wart
Waterhouse-Friderichsen syndrome
Waterhouse–Friderichsen syndrome
Weaver syndrome
Webbed neck
Webbed toes
Wegener's granulomatosis
Weight loss
Weill-Marchesani syndrome
Weissenbacher-Zweymuller syndrome
Weissenbacher–Zweymüller syndrome
Werner syndrome
Wernicke encephalopathy
Wernicke's encephalopathy
Wernicke-Korsakoff syndrome
Wernicke–Korsakoff syndrome
West Nile encephalitis
West Nile fever
West Nile virus
Western equine encephalitis
Wet-tail
Wheat allergy
Wheat leaf rust
Wheat yellow rust
Whiplash
Whiplash (medicine)
Whipple disease
Whipple's disease
White coat hypertension
White sponge nevus
White-nose syndrome
Whooping cough
Williams syndrome
Williams-Beuren syndrome
Williams–Campbell syndrome
Wilms' tumor
Wilson disease
Wilson's disease
Wilson–Turner syndrome
Winchester syndrome
Winged scapula
Wiskott-Aldrich syndrome
Wiskott–Aldrich syndrome
Wissler's syndrome
Witch's broom
Wobbly hedgehog syndrome
Wolcott–Rallison syndrome
Wolf-Hirschhorn syndrome
Wolff-Parkinson-White (WPW) syndrome
Wolff-Parkinson-White syndrome
Wolff–Parkinson–White syndrome
Wolfram syndrome
Wolf–Hirschhorn syndrome
Wolman disease
Wound
Wound dehiscence
Wrinkles
Wrist drop
Wrist osteoarthritis
Wrist pain
Writer's cramp
Wunderlich syndrome
X-linked adrenal hypoplasia congenita
X-linked agammaglobulinemia
X-linked congenital stationary night blindness
X-linked dystonia parkinsonism
X-linked hyper IgM syndrome
X-linked hypophosphatemia
X-linked hypophosphatemic rickets
X-linked ichthyosis
X-linked reticulate pigmentary disorder
X-linked severe combined immunodeficiency
Xanthinuria
xanthogranulomatous pyelonephritis
xanthomatosis
Xeroderma pigmentosum
Xerophthalmia
Xerostomia
XX gonadal dysgenesis
XX male syndrome
XY gonadal dysgenesis
XYY syndrome
Yaws
Yeast infection (vaginal)
Yellow fever
Yellow nail syndrome
Yellow-cedar decline
Yersiniosis
Yips
Young–Madders syndrome
Zadik–Barak–Levin syndrome
Zeaspora
Zellweger syndrome
Zenker's diverticulum
Zenker's paralysis
Zieve's syndrome
Zika fever
Zika virus disease
Zimmermann–Laband syndrome
Zinc deficiency
Zinc toxicity
Zollinger-Ellison syndrome
Zollinger–Ellison syndrome
Zoonosis
Zunich–Kaye syndrome
Zygomaticomaxillary complex fracture