A
- A fib
- AAT deficiency
- AATD
- Abdominal aortic aneurysm
- Abnormally excessive sweating
- Abscess, Bartholin’s
- Absence seizure
- Acanthosis nigricans
- Achalasia
- Achilles tendinitis
- Achilles tendon rupture
- Acid reflux, infant
- ACL injury
- Acne
- Acne inversa
- Acoustic neuroma (vestibular schwannoma)
- Acquired immunodeficiency syndrome
- Acromegaly
- Actinic keratosis
- Acute coronary syndrome
- Acute flaccid myelitis (AFM)
- Acute granulocytic leukemia
- Acute inflammatory demyelinating polyneuropathy
- Acute kidney failure
- Acute kidney injury
- Acute liver failure
- Acute lymphoblastic leukemia
- Acute lymphocytic leukemia
- Acute lymphoid leukemia
- Acute myeloblastic leukemia
- Acute myelogenous leukemia
- Acute myeloid leukemia
- Acute nonlymphocytic leukemia
- Acute radiation sickness
- Acute radiation syndrome
- Acute renal failure
- Acute respiratory distress syndrome
- Acute rhinosinusitis
- Acute sinusitis
- Acute symptomatic seizures secondary to autoimmune encephalitis
- Addiction, alcohol
- Addiction, gambling
- Addiction, nicotine
- Addison’s disease
- Adenitis, mesenteric
- Adenomyosis
- ADHD in children
- ADHD, Adult
- Adhesive capsulitis
- Adjustment disorders
- Adnexal tumors and masses
- Adolescent schizophrenia
- Adrenal cancer
- Adrenal mass
- Adrenoleukodystrophy
- Adult attention-deficit/hyperactivity disorder (ADHD)
- Adult Still disease
- AE
- AFM
- Age spots (liver spots)
- Age-related macular degeneration, dry
- Age-related macular degeneration, wet
- Agnogenic myeloid metaplasia
- Agoraphobia
- AIDP
- AIDS/HIV
- Airplane ear
- Albinism
- ALCL
- Alcohol addiction
- Alcohol intolerance
- Alcohol poisoning
- Alcohol use disorder
- Alcohol-associated hepatitis
- Alcoholic hepatitis (Alcohol-associated hepatitis)
- Allergic granulomatosis
- Allergic granulomatosis and angiitis
- Allergic rhinitis
- Allergies
- Allergy, dust mite
- Allergy, egg
- Allergy, food
- Allergy, latex
- Allergy, milk
- Allergy, mold
- Allergy, nickel
- Allergy, peanut
- Allergy, penicillin
- Allergy, pet
- Allergy, shellfish
- Allergy, wheat
- Alopecia
- Alpha 1
- Alpha-1-antitrypsin deficiency
- Alpha-gal syndrome
- ALS
- Alveolar osteitis
- Alzheimer’s disease
- Ambiguous genitalia
- Amblyopia
- Ameloblastoma
- Amenorrhea
- American trypanosomiasis
- Amnesia
- Amnesia, transient global
- Amnestic syndrome
- Ampullary cancer
- Amyloid disease
- Amyloidosis
- Amyotrophic lateral sclerosis (ALS)
- Anal cancer
- Anal fissure
- Anal fistula
- Anal itching
- Anaphylaxis
- Anaplastic large cell lymphoma
- Anemia
- Anemia, aplastic
- Anemia, Cooley’s
- Anemia, iron deficiency
- Anemia, Mediterranean
- Anemia, sickle cell
- Anemia, vitamin deficiency
- Aneurysm, abdominal aortic
- Aneurysm, aortic
- Aneurysm, brain
- Aneurysm, popliteal artery
- Aneurysm, thoracic aortic
- Aneurysms
- Angelman syndrome
- Angiitis
- Angina
- Angina pectoris
- Angioblastoma
- Angioedema and hives
- Angiofollicular lymph node hyperplasia
- Angiosarcoma
- Ankle fracture
- Ankle sprain
- Ankyloglossia
- Ankylosing spondylitis
- Anorexia
- Anorexia nervosa
- Anorgasmia in women
- Anterior cruciate ligament injury
- Anterior vaginal prolapse
- Anterior vaginal prolapse (cystocele)
- Anthrax
- Antibiotic-associated colitis
- Antibiotic-associated diarrhea
- Antiphospholipid syndrome
- Antisocial personality disorder
- Anxiety disorder, generalized
- Anxiety disorder, social
- Anxiety disorders
- Aortic aneurysm
- Aortic aneurysm, abdominal
- Aortic coarctation
- Aortic dissection
- Aortic insufficiency
- Aortic regurgitation
- Aortic valve disease
- Aortic valve regurgitation
- Aortic valve stenosis
- APD
- Aphasia
- Aphasia, primary progressive
- Aphthous stomatitis
- Aphthous ulcer
- Apical ballooning syndrome
- Aplastic anemia
- Appendicitis
- Appendix cancer
- APS
- ARDS
- Arenaviruses
- Argentine hemorrhagic fever
- Arm fracture
- Arnold-Chiari malformation
- Arrhythmia
- Arteriosclerosis / atherosclerosis
- Arteriovenous fistula
- Arteriovenous malformation
- Arteritis, giant cell
- Arteritis, Takayasu’s
- Arthritis
- Arthritis, basal joint
- Arthritis, degenerative
- Arthritis, gouty
- Arthritis, infectious
- Arthritis, juvenile idiopathic
- Arthritis, osteoarthritis
- Arthritis, psoriatic
- Arthritis, reactive
- Arthritis, rheumatoid
- Arthritis, septic
- Arthritis, thumb
- Asbestosis
- Ascariasis
- Ascites
- ASD
- Aseptic necrosis
- Aspergillosis
- Asthma
- Asthma attack
- Asthma, childhood
- Asthma, exercise-induced
- Asthma, occupational
- Astigmatism
- Astrocytoma
- AT
- Ataxia
- Atelectasis
- Atherosclerosis
- Athlete’s foot
- Atopic dermatitis (eczema)
- Atresia of bile ducts
- Atrial fibrillation
- Atrial flutter
- Atrial septal defect (ASD)
- Atrial tachycardia
- Atrioventricular canal defect
- Atrioventricular nodal reentry tachycardia (AVNRT)
- Atrioventricular septal defect
- Atrophic vaginitis
- ATRT
- Attachment disorder
- Attention-deficit/hyperactivity disorder (ADHD) in children
- Attention-deficit/hyperactivity disorder in adults
- Atypical genitalia
- Atypical hyperplasia of the breast
- Atypical teratoid rhabdoid tumor (ATRT)
- Atypical teratoid/rhabdoid tumor brain cancer
- Auditory information processing disorder
- Auditory processing disorder
- Autism spectrum disorder
- Autoimmune associated epilepsy
- Autoimmune encephalitis
- Autoimmune encephalopathy
- Autoimmune epilepsy
- Autoimmune hepatitis
- Autoimmune pancreatitis
- Autonomic neuropathy
- Avascular necrosis (osteonecrosis)
- Avian influenza
- AVN
- AVNRT
B
- B-cell lymphoma
- Baby acne
- Back pain
- Bacterial vaginosis
- Bad breath
- Bags under eyes
- Baker cyst
- Balance problems
- Baldness
- BANF
- Barber’s itch
- Bardet-Biedl syndrome (BBS)
- Barlow’s syndrome
- Barotitis media
- Barotrauma
- Barrett’s esophagus
- Bartholin’s cyst
- Basal cell carcinoma
- Basal joint arthritis
- BBS
- BDD
- Bed-wetting
- Bedbugs
- Bedsores (pressure ulcers)
- Bee sting
- Behcet disease
- Behcet syndrome
- Bell’s palsy
- Benign adrenal tumors
- Benign migratory glossitis
- Benign paroxysmal positional vertigo
- Benign paroxysmal positional vertigo (BPPV)
- Benign peripheral nerve tumor
- Benign prostatic hyperplasia (BPH)
- Berger’s disease
- Bicuspid aortic valve
- Bilateral acoustic neurofibromatosis
- Bile duct cancer
- Bile reflux
- Biliary atresia
- Binge drinking
- Binge-eating disorder
- Bipolar disorder
- Bird flu (avian influenza)
- Black hairy tongue
- Blackheads
- Bladder calculi
- Bladder cancer
- Bladder control, loss of
- Bladder exstrophy
- Bladder infection
- Bladder inflammation
- Bladder prolapse
- Bladder stones
- Blastocystis hominis
- Blastocystosis
- Blepharitis
- Blocked tear duct
- Blocked ureter
- Blood in urine (hematuria)
- BMS
- Body dysmorphic disorder
- Body lice
- Body odor and sweating
- Boils and carbuncles
- Bone cancer
- Bone infection
- Bone metastasis
- Bone spurs
- Borderline personality disorder
- Botulism
- Bowel incontinence
- Bowel obstruction
- BPH
- Brachial plexus injury
- Bradycardia
- Bradycardia-tachycardia syndrome
- Brain aneurysm
- Brain arteriovenous malformation
- Brain AVM (arteriovenous malformation)
- Brain metastases
- Brain stem tumor
- Brain tumor
- Brain tumor, child
- Brainstem tumor
- Breast cancer
- Breast cancer, inflammatory
- Breast cancer, male
- Breast cysts
- Breast infection
- Breast pain
- Broken ankle
- Broken arm
- Broken blood vessel in eye
- Broken collarbone
- Broken foot
- Broken hand
- Broken heart syndrome
- Broken hip
- Broken leg
- Broken nose
- Broken ribs
- Broken toe
- Broken wrist
- Bronchiolitis
- Bronchitis
- Brucellosis
- Brugada syndrome
- Buerger disease
- Bulimia nervosa
- Bullous pemphigoid
- Bundle branch block
- Bunions
- Bunyaviruses
- Burkitt lymphoma
- Burkitt’s tumor
- Burn injury
- Burning mouth syndrome
- Burning thigh pain
- Burns
- Bursitis
- Bursitis of the knee
C
- C. diff
- C. difficile colitis
- C. difficile infection
- Calciphylaxis
- Calluses and corns
- Cancer
- Cancer of unknown origin
- Cancer, acute lymphocytic leukemia
- Cancer, anal
- Cancer, basal cell
- Cancer, bladder
- Cancer, bone
- Cancer, breast
- Cancer, carcinoid tumors
- Cancer, cervical
- Cancer, chronic lymphocytic leukemia
- Cancer, chronic myelogenous leukemia
- Cancer, colon
- Cancer, endometrial
- Cancer, esophageal
- Cancer, eye melanoma
- Cancer, floor of the mouth
- Cancer, gallbladder
- Cancer, gastric
- Cancer, hairy cell leukemia
- Cancer, Hodgkin lymphoma
- Cancer, Hurthle cell
- Cancer, inflammatory breast
- Cancer, kidney
- Cancer, leukemia
- Cancer, liver
- Cancer, lung
- Cancer, male breast
- Cancer, Merkel cell
- Cancer, mesothelioma
- Cancer, mouth
- Cancer, multiple myeloma
- Cancer, nasopharyngeal
- Cancer, neuroblastoma
- Cancer, neuroendocrine
- Cancer, non-Hodgkin lymphoma
- Cancer, oral
- Cancer, ovarian
- Cancer, pancreatic
- Cancer, paraneoplastic syndromes
- Cancer, prostate
- Cancer, rectal
- Cancer, retinoblastoma
- Cancer, skin
- Cancer, soft tissue sarcoma
- Cancer, squamous cell
- Cancer, stomach
- Cancer, testicular
- Cancer, throat
- Cancer, thyroid
- Cancer, uterine
- Cancer, vagina
- Cancer, vulvar
- Cancer, Wilms’ tumor
- Candidiasis, oral
- Candidiasis, vaginal
- Canker sore
- Carbon monoxide poisoning
- Carbuncles and boils
- Carcinoid syndrome
- Carcinoid tumors
- Carcinoma of unknown primary
- Cardiac arrest, sudden
- Cardiac ischemia
- Cardiogenic shock
- Cardiomegaly
- Cardiomyopathy
- Cardiomyopathy, dilated
- Cardiomyopathy, hypertrophic
- Cardiospasm
- Cardiovascular disease
- Carotid artery disease
- Carotid artery stenosis
- Carotid insufficiency
- Carpal tunnel syndrome
- CAS
- Castleman disease
- Cataracts
- Cavernous malformations
- Cavities and tooth decay
- CDG
- CDH
- Celiac artery compression
- Celiac artery compression syndrome
- Celiac axis syndrome
- Celiac disease
- Celiac trunk compression syndrome
- CELLO
- Cellulite
- Cellulitis
- Central auditory processing disorder
- Central nervous system (CNS) lymphoma
- Central nervous system vascular malformations
- Central neurofibromatosis
- Central sleep apnea
- Cercarial dermatitis
- Cerebral aneurysm
- Cerebral palsy
- Cerebrospinal fluid leak
- Cerebrovascular accident
- Cerumen impaction
- Cervical cancer
- Cervical dystonia
- Cervical insufficiency
- Cervical osteoarthritis
- Cervical pain
- Cervical spondylosis
- Cervicitis
- CF
- Chagas disease
- Charcot-Marie-Tooth disease
- CHD
- Chemical dependency
- Chemo brain
- Chest pain
- Chest wall pain
- Chiari malformation
- Chickenpox
- Chilblains
- Child abuse
- Child maltreatment
- Childhood apraxia of speech
- Childhood asthma
- Childhood obesity
- Childhood schizophrenia
- Chlamydia
- Chlamydia trachomatis
- Cholangiocarcinoma (bile duct cancer)
- Cholangitis, primary sclerosing
- Cholecystitis
- Cholera
- Cholestasis of pregnancy
- Chondrosarcoma
- Chordoma
- Chorea, Huntington’s
- Choroid plexus carcinoma
- Chronic acid reflux
- Chronic adrenal insufficiency
- Chronic compartment syndrome
- Chronic cough
- Chronic daily headaches
- Chronic exertional compartment syndrome
- Chronic fatigue syndrome
- Chronic granulomatous disease
- Chronic hives
- Chronic kidney disease
- Chronic kidney failure
- Chronic lymphocytic leukemia
- Chronic lymphocytic thyroiditis
- Chronic myelogenous leukemia
- Chronic obstructive pulmonary disease
- Chronic pelvic pain
- Chronic renal failure
- Chronic rhinosinusitis
- Chronic sinusitis
- Chronic traumatic encephalopathy
- Chronic vulvar pain
- Churg-Strauss syndrome
- Cirrhosis
- CJD
- CKD
- Claudication
- Cleft lip and cleft palate
- Click-murmur syndrome
- Clinical depression
- CLL
- Clostridioides difficile infection
- Clostridium difficile infection
- Clubfoot
- Cluster headache
- Coarctation of the aorta
- Coccidioidomycosis
- Cold allergy
- Cold exposure
- Cold sore
- Cold urticaria
- Cold, common
- Colic
- Colitis, ischemic
- Colitis, microscopic
- Colitis, pseudomembranous
- Colitis, ulcerative
- Collapsed lung
- Colon cancer
- Colon polyps
- Colonic ischemia
- Color blindness
- Colorectal cancer
- Columnar epithelium lined lower esophagus
- Coma
- Common cold
- Common cold in babies
- Common variable immunodeficiency
- Common warts
- Complex regional pain syndrome
- Complicated bereavement
- Complicated grief
- Compressed nerve
- Compulsive gambling
- Compulsive hoarding syndrome
- Compulsive overeating
- Compulsive sexual behavior
- Compulsive stealing
- Concussion
- Condylomata acuminata
- Congenital adrenal hyperplasia
- Congenital biliary atresia
- Congenital diaphragmatic hernia (CDH)
- Congenital heart defects in children
- Congenital heart disease in adults
- Congenital hip dislocation
- Congenital megacolon
- Congenital mitral valve anomalies
- Congenital myasthenic syndromes
- Congenital plagiocephaly
- Congestive heart failure
- Conjoined twins
- Conjunctivitis
- Constipation
- Constipation in children
- Contact dermatitis
- Conversion disorder
- Cooley’s anemia
- COPD
- Corns and calluses
- Coronary artery disease
- Coronary microvascular disease
- Coronavirus disease 2019 (COVID-19)
- Corticobasal degeneration (corticobasal syndrome)
- Costochondritis
- Costosternal chondrodynia
- Costosternal syndrome
- Cough headaches
- Cough, chronic
- COVID-19
- COVID-19-associated multisystem inflammatory syndrome in children
- Crabs
- Cradle cap
- Cramp, muscle
- Cramps, menstrual
- Cranial arteritis
- Craniopharyngioma
- Craniosynostosis
- Creutzfeldt-Jakob disease
- Crib death
- Crohn’s disease
- Croup
- CRPS
- Cryoglobulinemia
- Cryptorchidism
- CSF leak (Cerebrospinal fluid leak)
- CTCL
- Curvature of the penis
- Curvature of the spine
- Cushing syndrome
- Cutaneous B-cell lymphoma
- Cutaneous T-cell lymphoma
- Cutting/self-injury
- CVA
- CVID
- Cyclic vomiting syndrome
- Cyclothymia (cyclothymic disorder)
- Cyclothymic disorder
- Cyst, Bartholin’s
- Cyst, ganglion
- Cyst, kidney
- Cyst, ovarian
- Cyst, pancreatic
- Cyst, pilonidal
- Cyst, spermatic
- Cystic fibrosis
- Cystitis
- Cystitis, interstitial
- Cystocele
- Cysts, epidermoid
- Cysts, sebaceous
- Cytomegalovirus (CMV) infection
- Cytomegalovirus infection
D
- Dandruff
- Daytime sleepiness
- DCIS
- DDH
- De Quervain tenosynovitis
- Decreased tear production
- Deep vein thrombosis (DVT)
- Deficient color vision
- Degenerative arthritis
- Dehydration
- Delayed ejaculation
- Delayed gastric emptying
- Delayed sleep phase
- Delayed sleep phase syndrome
- Delayed sleep-wake phase sleep disorder
- Delirium
- Dementia
- Dementia, frontotemporal
- Dementia, Lewy body
- Dementia, vascular
- Dengue fever
- Dengue hemorrhagic fever
- Dependence, nicotine
- Depersonalization-derealization disorder
- Depression (major depressive disorder)
- Depression, postpartum
- Depression, teen
- Dermatitis
- Dermatitis, atopic
- Dermatitis, cercarial
- Dermatitis, contact
- Dermatitis, scratch
- Dermatitis, seborrheic
- Dermatofibrosarcoma protuberans
- Dermatographia (Dermatographism)
- Dermatographism
- Dermatomyositis
- Dermatophytosis
- Desmoid tumors
- Desmoplastic small round cell tumors
- Detached retina
- Developmental dysplasia of the hip
- Deviated septum
- Devic’s disease
- DFSP
- Diabetes
- Diabetes insipidus
- Diabetes mellitus
- Diabetes, gestational
- Diabetes, type 1
- Diabetes, type 1 in children
- Diabetes, type 2
- Diabetes, type 2 in children
- Diabetic coma
- Diabetic hypoglycemia
- Diabetic ketoacidosis
- Diabetic nephropathy (kidney disease)
- Diabetic neuropathy
- Diabetic retinopathy
- Diaper rash
- Diarrhea
- Diarrhea, antibiotic-associated
- Diarrhea, traveler’s
- Difficulty speaking
- Difficulty swallowing
- Diffuse large B-cell lymphoma
- Diffuse midline glioma (DMG)
- DiGeorge syndrome (22q11.2 deletion syndrome)
- Dilated cardiomyopathy
- Diphtheria
- Dislocated shoulder
- Dissecting aneurysm
- Dissociative disorders
- Diverticulitis
- Dizziness
- DMG
- Double uterus
- Double-outlet right ventricle
- Down syndrome
- Dressler syndrome
- Drop foot
- Drug addiction (substance use disorder)
- Drug allergy
- Dry age-related macular degeneration
- Dry AMD
- Dry eyes
- Dry macular degeneration
- Dry mouth
- Dry skin
- Dry socket
- DSPS
- DSRCT
- DSWPD
- Ductal carcinoma in situ (DCIS)
- Dumping syndrome
- Dunbar syndrome
- Dupuytren contracture
- Dural arteriovenous fistulas
- Dust mite allergy
- DVT
- Dwarfism
- Dysarthria
- Dyshidrosis
- Dyslexia
- Dysmenorrhea
- Dyspareunia
- Dyspepsia
- Dysphagia
- Dysphonia
- Dysrhythmias
- Dysthymia
- Dystonia
- Dystonia, cervical
E
- E. coli
- Ear infection (middle ear)
- Ear infection, outer ear
- Eardrum, ruptured
- Early puberty
- Earwax blockage
- Eating disorders
- Eating disorders, anorexia
- Eating disorders, binge eating
- Eating disorders, bulimia
- Ebstein anomaly
- Ectopic heartbeat
- Ectopic pregnancy
- Ectropion
- Eczema
- Eczema, dyshidrotic
- ED
- Edema
- Edema, pulmonary
- Egg allergy
- Ehlers-Danlos syndrome
- Ehrlichiosis and anaplasmosis
- Eisenmenger syndrome
- Elevated blood pressure
- Embolism, pulmonary
- Embryonal tumors
- Emphysema
- Encephalitis
- Encopresis
- End stage kidney failure
- End-stage renal disease
- Endocardial cushion defect
- Endocarditis
- Endometrial cancer
- Endometrial polyps
- Endometriosis
- Enlarged breasts in men (gynecomastia)
- Enlarged heart
- Enlarged liver
- Enlarged prostate
- Enlarged spleen (splenomegaly)
- Enlarged thyroid
- Entropion
- Eosinophilic esophagitis
- Eosinophilic granulomatosis with polyangiitis
- Ependymoma
- Epicondylitis, lateral
- Epidermoid cysts
- Epidermolysis bullosa
- Epididymitis
- Epiglottitis
- Epilepsy
- Epilepsy, frontal lobe
- Epithelioid sarcoma
- Erectile dysfunction
- Erythema infectiosum
- Escherichia coli infection
- Esophageal achalasia
- Esophageal cancer
- Esophageal spasms
- Esophageal varices
- Esophagitis
- Essential tremor
- Esthesioneuroblastoma
- Ewing sarcoma
- Excess facial hair in women
- Excessive daytime sleepiness
- Excessive menstrual bleeding
- Exercise headaches
- Exercise-induced asthma
- External otitis
- Extrahepatic biliary atresia
- Extrasystole
- Eye floaters
- Eye melanoma
- Eyelid inflammation
- Eyestrain
F
- Facial hair, excess in women
- Facial palsy
- Factitious disorder
- Factor V Leiden
- Fallen arches
- Fallot, tetralogy of
- Familial adenomatous polyposis
- Familial hypercholesterolemia
- Familial Mediterranean fever
- Familial paroxysmal peritonitis
- FAP
- Farsightedness
- Fatty liver disease (MASLD)
- FDIS
- Febrile seizure
- FEC
- Fecal incontinence
- FECD
- Female infertility
- Female sexual dysfunction
- Fetal alcohol syndrome
- Fetal macrosomia
- Fever
- Fever blister
- Fever, valley
- Fevers, viral hemorrhagic
- FH
- Fibroadenoma
- Fibrocystic breasts
- Fibroids, uterine
- Fibromuscular dysplasia
- Fibromyalgia
- Fibromyalgia syndrome
- Fibrosis, interstitial pulmonary
- Fibrosis, pulmonary
- Fifth disease
- Filoviruses
- Fistula, arteriovenous
- Flatfeet
- Flatulence
- Flaviviruses
- Floaters
- Floor of the mouth cancer
- Floppy valve syndrome
- Flu
- Flu, avian
- Flu, bird
- Flu, swine
- Fluid around the heart
- FM
- FMS
- FND
- Focal segmental glomerulosclerosis (FSGS)
- Folate deficiency anemia
- Follicular lymphoma
- Folliculitis
- Food allergy
- Food allergy, egg
- Food allergy, milk
- Food poisoning (foodborne illness)
- Food-borne illness
- Foot drop
- Foot fracture
- Foramen ovale
- Fracture, arm
- Fracture, growth plate
- Fracture, hip
- Fracture, leg
- Fracture, stress
- Fractured nose
- Fractured rib
- Frontal lobe epilepsy
- Frontal lobe seizures
- Frontotemporal dementia
- Frontotemporal lobar degeneration
- Frostbite
- Frozen shoulder
- FSGS
- FTD
- Fuchs dystrophy
- Fuchs endothelial corneal dystrophy
- Fuchs endothelial dystrophy
- Functional dyspepsia
- Functional neurologic disorder/conversion disorder
- Functional neurological symptom disorder
- Fungal infection, nail
- Funnel chest
G
- GAD
- Galactorrhea
- Gallbladder cancer
- Gallbladder inflamation
- Gallstones
- Gambling, compulsive
- Ganglion cyst
- Gangrene
- Gas and gas pains
- Gastric cancer
- Gastric emptying, delayed
- Gastric emptying, rapid
- Gastritis
- Gastroenteritis, viral
- Gastroesophageal reflux disease (GERD)
- Gastrointestinal bleeding
- Gastrointestinal stromal tumor (GIST)
- Gastroparesis
- Gaucher disease
- GBM
- Gender dysphoria
- Gender identity disorder
- Generalized anxiety disorder
- Genital herpes
- Genital warts
- Geographic atrophy
- Geographic tongue
- GERD
- Germ cell tumors
- German measles
- Gestational diabetes
- Giant cell arteritis
- Giant lymph node hyperplasia
- Giardia infection (giardiasis)
- Gilbert syndrome
- Gingivitis
- Glaucoma
- Glioblastoma
- Glioblastoma multiforme
- Glioma
- Glomerulonephritis
- Glossodynia
- Glucocerebrosidase deficiency
- Gluten-sensitive enteropathy
- Goiter
- Golfer’s elbow
- Gonorrhea
- Gout
- Grade IV astrocytoma
- Granuloma annulare
- Granulomatosis with polyangiitis
- Graves’ disease
- Grief
- Gross hematuria
- Group B strep disease
- Growing pains
- Growth plate fractures
- Guillain-Barre syndrome
- Gum disease, gingivitis
- Gum disease, periodontitis
- Gynecomastia
H
- H. pylori infection
- H1N1 flu
- H1N1 flu (swine flu)
- H1N1v flu
- H3N2v flu
- Hair loss
- Hair-pulling disorder
- Hairy cell leukemia
- Hairy tongue
- Halitosis
- Hallux valgus
- Hammertoe and mallet toe
- Hamstring injury
- Hand fracture
- Hand-foot-and-mouth disease
- Hangovers
- Hantavirus pulmonary syndrome
- Hardening of the arteries
- Hashimoto’s disease
- HAV infection
- Hay fever
- HBV infection
- HCC
- HCV infection
- Head and neck cancers
- Head lice
- Head trauma, coma
- Headache, chronic daily
- Headache, cluster
- Headache, exercise
- Headache, medication overuse
- Headache, migraine
- Headache, primary cough
- Headache, sex
- Headache, sinus
- Headache, spinal
- Headache, tension
- Headache, thunderclap
- Headaches in children
- Health anxiety
- Hearing loss
- Heart arrhythmia
- Heart attack
- Heart defects in adults
- Heart disease
- Heart failure
- Heart murmurs
- Heart palpitations
- Heart valve disease
- Heartburn
- Heat exhaustion
- Heat rash
- Heatstroke
- Heavy menstrual bleeding
- Heel pain
- Helicobacter pylori (H. pylori) infection
- Hemangioblastoma
- Hemangioma
- Hemangioma, liver
- Hematoma, intracranial
- Hematuria
- Hemifacial spasm
- Hemochromatosis
- Hemolytic uremic syndrome (HUS)
- Hemophilia
- Hemorrhoids
- Henoch-Schonlein purpura
- Hep A
- Hep B
- Hep C
- Hepatic encephalopathy
- Hepatitis A
- Hepatitis A virus infection
- Hepatitis B
- Hepatitis B virus infection
- Hepatitis C
- Hepatitis C virus infection
- Hepatitis, autoimmune
- Hepatitis, toxic
- Hepatocellular carcinoma (HCC)
- Hepatolenticular degeneration
- Hepatomegaly
- Hepatopulmonary syndrome
- Hereditary hemochromatosis
- Hereditary hemorrhagic telangiectasia
- Hereditary motor and sensory neuropathy
- Hereditary nonpolyposis colorectal cancer syndrome
- Hernia, hiatal
- Hernia, inguinal
- Hernia, umbilical
- Herniated disk
- Herpes zoster
- Herpes zoster oticus
- Herpes, genital
- HHT
- Hiatal hernia
- Hiccups
- Hidradenitis suppurativa
- High blood pressure (hypertension)
- High blood pressure in children
- High blood pressure, secondary
- High cholesterol
- High-flow priapism
- Hilar cholangiocarcinoma
- Hip dysplasia
- Hip fracture
- Hip labral tear
- Hirschsprung’s disease
- Hirsutism
- Histoplasmosis
- HIV/AIDS
- Hives and angioedema
- Hives, chronic
- HNPCC
- Hoarding disorder
- Hoarse voice
- Hodgkin disease
- Hodgkin lymphoma (Hodgkin disease)
- Hordeolum
- Horner syndrome
- Horner-Bernard syndrome
- Hot flashes
- HPV infection
- Human immunodeficiency virus
- Human papillomavirus infection
- Hunchback
- Hunt’s syndrome
- Huntington’s disease
- Hurthle cell cancer
- Hutchinson-Gilford progeria syndrome
- Hydrocele
- Hydrocephalus
- Hydronephrosis
- Hypercalcemia
- Hypercholesterolemia
- Hypercholesterolemia, familial
- Hypercortisolism
- Hypereosinophilic syndrome
- Hyperglycemia in diabetes
- Hyperhidrosis
- Hypermenorrhea
- Hyperopia
- Hyperoxaluria and oxalosis
- Hyperparathyroidism
- Hypersexuality
- Hypertension
- Hypertension, pregnancy-related
- Hypertension, pulmonary
- Hyperthyroidism (overactive thyroid)
- Hypertrophic cardiomyopathy
- Hypoactive sexual desire disorder
- Hypochondria
- Hypoglycemia
- Hypoglycemia, diabetic
- Hypohydration
- Hyponatremia
- Hypoparathyroidism
- Hypopituitarism
- Hypoplastic left heart syndrome
- Hypospadias
- Hypotension
- Hypothermia
- Hypothyroidism (underactive thyroid)
I
- IBD
- IBS
- Idiopathic hypersomnia
- Idiopathic intracranial hypertension
- Idiopathic myelofibrosis
- Idiopathic thrombocytopenic purpura
- Idiopathic toe walking
- IgA nephropathy (Berger disease)
- IgA vasculitis
- IIH
- Illness anxiety disorder
- Immune thrombocytopenia (ITP)
- Immune thrombocytopenic purpura
- Impacted wisdom teeth
- Impaired glucose tolerance
- Impetigo
- Impotence
- Inborn error of metabolism
- Incompetent cervix
- Incontinence, bowel
- Incontinence, fecal
- Incontinence, urinary
- Indigestion
- Infant jaundice
- Infant reflux
- Infantile hemangioma
- Infectious arthritis
- Infectious diseases
- Infertility
- Infertility, female
- Infertility, male
- Inflamed gallbladder
- Inflamed pancreas
- Inflamed pericardium
- Inflammatory bowel disease (IBD)
- Inflammatory breast cancer
- Influenza (flu)
- Influenza, avian
- Influenza, H1N1
- Influenza, swine flu
- Ingrown hair
- Ingrown toenails
- Inguinal hernia
- Inherited metabolic disorders
- Insomnia
- Insulin resistance syndrome
- Interdigital neuroma
- Intermittent claudication
- Intermittent explosive disorder
- Interstitial cystitis
- Interstitial lung disease
- Intestinal ischemia
- Intestinal lipodystrophy
- Intestinal obstruction
- Intracranial aneurysm
- Intracranial hematoma
- Intracranial venous malformations
- Intraductal carcinoma
- Intrahepatic cholestasis of pregnancy
- Intussusception
- Invasive lobular carcinoma
- Iritis
- Iron deficiency anemia
- Iron overload
- Irritable bowel syndrome
- Ischemia, intestinal
- Ischemic bone necrosis
- Ischemic colitis
- Ischemic priapism
- Islet cell cancer
- Itchy skin (pruritus)
- ITP
J
K
L
- Lactase deficiency
- Lactation mastitis
- Lactose intolerance
- Laryngitis
- Lassa fever
- Lateral elbow tendinopathy
- Lateral epicondylitis
- Lateral epicondylosis
- Latex allergy
- Lazy eye (amblyopia)
- LCIS
- Lead poisoning
- Left ventricular hypertrophy
- Leg fracture
- Legg-Calve-Perthes disease
- Legionellosis
- Legionnaires’ disease
- Leiomyosarcoma
- Lentigines, solar
- Leukemia
- Leukemia, acute lymphocytic
- Leukemia, acute myelogenous
- Leukemia, chronic lymphocytic
- Leukemia, chronic myelogenous
- Leukemia, general
- Leukemia, hairy cell
- Leukoplakia
- Lewy body dementia
- Lice
- Lice, body
- Lichen planus
- Lichen planus, oral
- Lichen sclerosus
- Lichen simplex chronicus
- Lip cancer
- Lipodystrophy, intestinal
- Lipoma
- Liposarcoma
- Listeria infection
- Listeriosis
- Liver cancer
- Liver disease
- Liver failure, acute
- Liver fibrosis
- Liver hemangioma
- Liver spots
- Liver, enlarged
- Lobular carcinoma in situ (LCIS)
- Localized scleroderma
- Lockjaw
- Long QT syndrome
- Loss of bladder control
- Lou Gehrig’s disease
- Low blood pressure (hypotension)
- Low blood sugar
- Low body temperature
- Low platelet count
- Low sex drive in women
- Low sperm count
- Low testosterone
- Low-flow priapism
- Lung cancer
- Lung collapse
- Lung disease, interstitial
- Lupus
- Lupus nephritis
- Lyme disease
- Lymph nodes, swollen
- Lymphadenitis
- Lymphadenitis, mesenteric
- Lymphedema
- Lymphoma
- Lymphoma, Hodgkin
- Lymphoma, non-Hodgkin
- Lymphoplasmacytic lymphoma
- Lynch syndrome
M
- Macular degeneration, dry
- Macular degeneration, wet
- Mad cow disease
- Major depressive disorder
- Malaria
- Male breast cancer
- Male hypogonadism
- Male infertility
- Malignant fibrous histiocytoma
- Malignant hyperthermia
- Malignant mesothelioma
- Malignant peripheral nerve sheath tumors (MPNST)
- Mallet toe and hammertoe
- MALS
- Mammary duct ectasia
- Manic-depressive illness
- Mantle cell lymphoma
- Marfan syndrome
- Marginal zone lymphoma
- MASH
- MASLD
- Mastalgia
- Mastitis
- MCAD deficiency
- mCRPC
- MD
- MDS
- ME/CFS
- Measles
- Measles, German
- Medial epicondylitis
- Medial tibial stress syndrome
- Median arcuate ligament syndrome (MALS)
- Medication overuse headaches
- Mediterranean anemia
- Medulloblastoma
- Megacolon
- Megaloblastic anemia
- Melanoma
- Melanoma of the eye
- MEN 2
- Meniere’s disease
- Meningioma
- Meningitis
- Meniscus tear
- Menopause
- Menorrhagia
- Menstrual cramps
- Mental illness
- Meralgia paresthetica
- Merkel cell carcinoma
- Mesenteric ischemia
- Mesenteric lymphadenitis
- Mesothelioma
- Metabolic dysfunction-associated steatohepatitis
- Metabolic dysfunction-associated steatotic liver disease
- Metabolic syndrome
- Metachromatic leukodystrophy
- Metastatic (stage 4) prostate cancer
- Metastatic castration-resistant prostate cancer (mCRPC)
- Metastatic colorectal cancer
- Metatarsalgia
- Methicillin-resistant staphylococcus aureus infection
- MFS
- MG
- MGUS
- Microcephaly
- Microscopic colitis
- Microscopic hematuria
- Migraine
- Migraine with aura
- Mild cognitive impairment (MCI)
- Miliaria
- Milk allergy
- Milk intolerance
- Miscarriage
- MISME
- Mitral valve disease
- Mitral valve prolapse
- Mitral valve regurgitation
- Mitral valve stenosis
- Mittelschmerz
- Mixed connective tissue disease
- MOG antibody-associated disorder
- MOGAD
- Molar pregnancy
- Mold allergy
- Moles
- Molluscum contagiosum
- Mono
- Monoclonal gammopathy of undetermined significance (MGUS)
- Mononucleosis
- Mood disorders
- Morning sickness
- Morphea
- Morton neuroma
- Mosquito bites
- Mouth cancer
- Movement disorders
- Moyamoya disease
- MRSA infection
- MS
- MSA
- Mucocutaneous lymph node syndrome
- Multiple endocrine neoplasia type 1
- Multiple endocrine neoplasia, type 1 (MEN 1)
- Multiple endocrine neoplasia, type 2 (MEN 2)
- Multiple inherited schwannomas, meningiomas, and ependymomas
- Multiple myeloma
- Multiple sclerosis
- Multiple system atrophy
- Multisystem inflammatory syndrome in children (MIS-C)
- Mumps
- Munchausen syndrome
- Muscle cramp
- Muscle strains
- Muscular dystrophy
- Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)
- Myasthenia gravis
- Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD)
- Myelodysplastic neoplasms
- Myelodysplastic syndromes
- Myelofibrosis
- Myocardial infarction
- Myocardial ischemia
- Myocarditis
- Myoclonus
- Myofascial pain syndrome
- Myopia
- Myxofibrosarcoma
- MZL
N
- NAFLD
- Nail fungus
- Narcissistic personality disorder
- Narcolepsy
- Nasal and paranasal tumors
- Nasal polyps
- Nasopharyngeal carcinoma
- Nearsightedness
- NEC
- Neck pain
- Neonatal jaundice
- Nephroblastoma
- Nephrogenic systemic fibrosis
- Nephrotic syndrome
- Nerve compression
- Nerve sheath tumors
- NET
- Neuralgia, postherpetic
- Neuralgia, trigeminal
- Neurilemmoma
- Neurinomatosis
- Neuroblastoma
- Neurocardiogenic syncope
- Neurodermatitis
- Neuroendocrine carcinoma of the skin
- Neuroendocrine tumors
- Neurofibroma
- Neurofibromatosis type 1
- Neurofibromatosis type 2
- Neurofibromatosis type I
- Neurofibromatosis type II
- Neurofibrosarcoma
- Neuroma, acoustic
- Neuroma, plantar
- Neuromyelitis optica
- Neuromyelitis optica spectrum disorder
- Neuropathy, autonomic
- Neuropathy, diabetic
- Neuropathy, hereditary motor and sensory
- Neuropathy, peripheral
- Nevus
- Newborn jaundice
- NF1
- NF2
- NF2-related schwannomatosis (neurofibromatosis type 2)
- Nickel allergy
- Nicotine addiction
- Nicotine dependence
- Niemann-Pick disease
- Night terrors
- Nightmare disorder
- NMO
- NMOSD
- Noctural enuresis
- Noise-related hearing loss
- Non-Hodgkin lymphoma
- Nonallergic rhinitis
- Nonischemic priapism
- Nonmelanoma skin cancer
- Nontropical sprue
- Nonulcer dyspepsia
- Nonulcer stomach pain
- Noonan syndrome
- Norovirus infection
- Nose fracture
- Nymphomania
O
- OAB
- Obesity
- Obesity, childhood
- Obsessive-compulsive disorder (OCD)
- Obstetric cholestasis
- Obstructive sleep apnea
- Obstructive sleep apnea in children
- Occult primary cancer
- Occupational asthma
- OCD
- Ocular albinism
- Ocular rosacea
- Oculocutaneous albinism
- Oculosympathetic palsy
- ODD
- Odontogenic tumors and cysts
- OHSS
- Olfactory neuroblastoma
- Oligodendroglioma
- OLP
- Onychomycosis
- Oppositional defiant disorder (ODD)
- Optic glioma
- Optic nerve glioma
- Optic neuritis
- Optic pathway glioma
- Oral cancer
- Oral candidiasis
- Oral lichen planus
- Oral thrush
- Orchitis
- Orthostatic hypotension (postural hypotension)
- Osteoarthritis
- Osteoarthritis, cervical
P
- PA/IVS
- PAD
- PAES
- Paget’s disease of bone
- Paget’s disease of the breast
- Pain, back
- Pain, breast
- Pain, chest
- Pain, knee
- Pain, neck
- Pain, wrist
- Painful bladder syndrome
- Painful intercourse (dyspareunia)
- Painful periods
- Palsy, Bell’s
- Palsy, cerebral
- Palsy, facial
- Pancreas inflammation
- Pancreatic cancer
- Pancreatic cysts
- Pancreatic neuroendocrine tumors
- Pancreatitis
- Panic attacks and panic disorder
- PAPVR
- Paraganglioma
- Paraneoplastic neurological disorder
- Paraneoplastic neurological syndrome
- Paraneoplastic syndromes of the nervous system
- Parkinson’s disease
- Parotid tumors
- Partial anomalous pulmonary venous connection
- Partial anomalous pulmonary venous return
- Parvovirus infection
- Patellar tendinitis
- Patellofemoral pain syndrome
- Patent ductus arteriosus (PDA)
- Patent foramen ovale
- Pathological gambling
- Pathological laughter and crying
- Pathological stealing
- PBA
- PCOS
- PDA
- Peanut allergy
- Pectus excavatum
- Pediatric brain tumors
- Pediatric obstructive sleep apnea
- Pediatric white blood cell disorders
- Pediculosis capitis
- Pelvic inflammatory disease (PID)
- Pelvic organ prolapse
- Pelvic pain, chronic
- Pelvic support problems, uterine prolapse
- Pemphigus
- Penicillin allergy
- Peptic ulcer
- Perforated eardrum
- Pericardial effusion
- Pericardial inflammation
- Pericarditis
- Perimenopause
- Periodontal disease, gingivitis
- Periodontal disease, periodontitis
- Periodontitis
- Peripheral artery disease (PAD)
- Peripheral nerve injuries
- Peripheral nerve tumors
- Peripheral neurofibromatosis
- Peripheral neuropathy
- Peripheral vascular disease
- Periprosthetic joint infection (PJI)
- Peritoneal carcinomatosis
- Peritonitis
- Pernicious anemia
- Pernio
- Peroneal muscular atrophy
- Persistent depressive disorder
- Persistent post-concussive symptoms (Post-concussion syndrome)
- Personality disorder, antisocial
- Personality disorder, borderline
- Personality disorder, narcissistic
- Personality disorder, schizoid
- Personality disorder, schizotypal
- Personality disorders
- Pertussis
- Pes planus
- Pet allergy
- Petit mal seizure
- Peutz-Jeghers syndrome
- Peyronie’s disease
- Pharyngitis
- Phenylketonuria (PKU)
- Pheochromocytoma
- Phlebitis
- Phobia, social
- Pick’s disease
- PID
- Piles
- Pilocytic astrocytoma
- Pilonidal cyst
- Pilonidal dimple
- Pimples
- Pinched nerve
- Pineal gland tumor
- Pineoblastoma
- Pink eye (conjunctivitis)
- Pinworm infection
- Pituitary adenoma
- Pituitary insufficiency
- Pituitary neuroendocrine tumor
- Pituitary tumors and adenomas
- Pityriasis rosea
- Pityriasis versicolor
- PJI
- PJS
- PKD
- PKU
- Placenta accreta
- Placenta previa
- Placental abruption
- Plague
- Plantar fasciitis
- Plantar neuroma
- Plantar warts
- Pleurisy
- Pleuritis
- Plexiform neurofibroma
- PLS
- PMBCL
- PMBL
- PN
- Pneumonia
- Pneumonitis
- Pneumothorax
- PNF
- POEMS syndrome
- Poison ivy rash
- Polio
- Polycystic kidney disease
- Polycystic ovary syndrome (PCOS)
- Polycythemia vera
- Polyhydramnios
- Polymorphous light eruption
- Polymyalgia rheumatica
- Polymyositis
- Polyps, colon
- Polyps, endometrial
- Polyps, nasal
- Polyps, stomach
- Polyps, uterine
- Pompholyx
- Poor color vision
- Popliteal artery aneurysm
- Popliteal artery entrapment
- Popliteal cyst
- Porphyria
- Post-cardiac injury syndrome
- Post-chemotherapy cognitive impairment
- Post-concussion syndrome
- Post-polio syndrome
- Post-traumatic stress disorder (PTSD)
- Post-vasectomy pain syndrome
- Posterior cortical atrophy
- Posterior prolapse
- Posterior vaginal prolapse (rectocele)
- Postherpetic neuralgia
- Postmyocardial infarction syndrome
- Postpartum depression
- Postpartum preeclampsia
- Postural hypotension
- Pouchitis
- Prader-Labhart-Willi syndrome
- Prader-Willi syndrome
- Precocious puberty
- Prediabetes
- Preeclampsia
- Preexcitation syndrome
- Pregnancy-related hypertension
- Premature birth
- Premature ejaculation
- Premature ovarian failure
- Premature ovarian insufficiency
- Premature puberty
- Premature ventricular contractions (PVCs)
- Premenstrual syndrome
- Premenstrual syndrome (PMS)
- Presbycusis
- Presbyopia
- Prescription drug abuse
- Pressure sore
- Pressure ulcer
- Preterm labor
- Priapism
- Prickly heat
- Primary adrenal insufficiency
- Primary biliary cholangitis (PBC)
- Primary biliary cirrhosis
- Primary immunodeficiency
- Primary lateral sclerosis (PLS)
- Primary mediastinal large B-cell lymphoma
- Primary ovarian insufficiency
- Primary polycythemia
- Primary progressive aphasia
- Primary sclerosing cholangitis (PSC)
- Proctitis
- Progeria
- Progressive supranuclear palsy
- Prolactinoma
- Prolapse, mitral valve
- Prolapsed bladder
- Prolapsed uterus
- Prostate cancer
- Prostate cancer recurrence
- Prostate gland enlargement
- Prostatitis
- Pruritis ani
- Pruritus
- Pseudobulbar affect
- Pseudocholinesterase deficiency
- Pseudogout
- Pseudomembranous colitis
- Pseudotumor cerebri (idiopathic intracranial hypertension)
- Psoriasis
- Psoriatic arthritis
- PTSD
- Pubic lice (crabs)
- Puffy eyes
- Pulmonary atresia
- Pulmonary atresia with intact ventricular septum
- Pulmonary atresia with ventricular septal defect
- Pulmonary edema
- Pulmonary embolism
- Pulmonary fibrosis
- Pulmonary hypertension
- Pulmonary valve disease
- Pulmonary valve stenosis
- PVCs
- PVD
- PVPS
- Pyelonephritis
- Pyloric stenosis
- Pyoderma gangrenosum
R
- RA
- Rabies
- Radiation enteritis
- Radiation sickness
- Ramsay Hunt syndrome
- Rapid eye movement sleep behavior disorder
- Rapid gastric emptying
- Rapid heartbeat
- Rash, poison ivy
- Raynaud’s disease
- Reactive arthritis
- Reactive attachment disorder
- Reading disability, specific
- Rebound headache
- Rectal cancer
- Rectal inflammation
- Rectal itching
- Rectal prolapse
- Rectal ulcer
- Rectocele
- Rectovaginal fistula
- Recurrent breast cancer
- Recurrent oral ulcers
- Recurrent prostate cancer
- Red eye
- Reflux, bile
- Reflux, vesicoureteral
- Regurgitation, aortic valve
- Regurgitation, mitral valve
- Reiter’s syndrome
- REM sleep behavior disorder
- Renal artery disease
- Renal artery stenosis
- Renal cancer
- Renal lithiasis
- Renal vascular disease
- Residual limb pain
- Respiratory syncytial virus (RSV)
- Restless legs syndrome
- Retinal detachment
- Retinal diseases
- Retinoblastoma
- Retinopathy, diabetic
- Retractile testicle
- Retrograde ejaculation
- Rett syndrome
- Reye’s syndrome
- Rhabdomyosarcoma
- Rheumatic fever
- Rheumatoid arthritis
- Rhinitis, allergic
- Rhinitis, nonallergic
- Rhinitis, vasomotor
- Rib fracture
- Rickets
- Rift Valley fever
- Ringing in the ear
- Ringworm (body)
- Ringworm (scalp)
- Ringworm of the foot
- RLS
- Road rage
- Rosacea
- Roseola
- Rotator cuff injury
- Rotavirus
- Round back
- RSV
- Rubella
- Rubeola
- Rumination syndrome
- Runner’s knee
- Ruptured disk
- Ruptured eardrum (perforated eardrum)
- Ruptured spleen
S
- Sacral dimple
- Sacroiliitis
- SAD
- Salivary gland tumors
- Salmonella infection
- Salmonellosis
- Sarcoidosis
- Sarcoma
- Sarcoma, bone cancer
- Sarcoma, soft tissue
- SBBO
- Scabies
- SCAD
- Scalded mouth syndrome
- Scarlatina
- Scarlet fever
- Schizoaffective disorder
- Schizoid personality disorder
- Schizophrenia
- Schizophrenia, adolescent
- Schizophrenia, childhood
- Schizophrenia, juvenile
- Schizotypal personality disorder
- Schwannoma
- Schwannomatosis
- SCI
- Sciatica
- Scleroderma
- Sclerosing cholangitis
- Sclerosing mesenteritis
- Sclerosis, multiple
- Sclerosis, systemic
- Scoliosis
- Scorpion sting
- Scrotal masses
- Seasonal affective disorder (SAD)
- Seasonal allergy
- Sebaceous carcinoma
- Sebaceous cysts
- Seborrheic dermatitis
- Seborrheic keratosis
- Secondary brain cancer
- Secondary hypertension
- SEID
- Seizure disorder
- Seizure, absence
- Seizure, febrile
- Seizure, grand mal
- Seizure, petit mal
- Seizure, temporal lobe
- Seizures
- Selective IgA deficiency
- Self harming
- Self-injury/cutting
- Separation anxiety disorder
- Sepsis
- Septal defect, atrial
- Septal defect, atrioventricular
- Septal defect, ventricular
- Septic arthritis
- Serotonin syndrome
- Severe acute respiratory syndrome
- Severe acute respiratory syndrome (SARS)
- Severe brain injury, coma
- Sex headaches
- Sexual dysfunction, female
- Sexual obsession
- Sexually transmitted diseases (STDs)
- Sezary disease
- Sezary syndrome
- Shaken baby syndrome
- Shellfish allergy
- Shigella infection
- Shin splints
- Shingles
- Short bowel syndrome
- Shoulder dislocation
- Shy-Drager syndrome
- SIBO
- Sick sinus syndrome
- Sickle cell anemia
- SIDS
- Sin Nombre virus infection
- Sinus headaches
- Sinusitis, acute
- Sinusitis, chronic
- Sjogren’s syndrome
- SJS
- Skin cancer
- Skin cancer, melanoma
- Skin writing
- Skin, itchy
- Skipped heartbeats
- Skull base tumors
- Slapped cheek disease
- Sleep apnea
- Sleep apnea in children, obstructive
- Sleep apnea, central
- Sleep apnea, obstructive
- Sleep disorders
- Sleep terrors (night terrors)
- Sleepiness, daytime
- Sleeplessness
- Sleepwalking
- Slipped disk
- SLL
- Slow heartbeat
- Small bowel bacterial overgrowth
- Small bowel cancer
- Small bowel prolapse
- Small bowel prolapse (enterocele)
- Small intestinal bacterial overgrowth (SIBO)
- Small intestine prolapse
- Small lymphocytic lymphoma
- Small vessel disease
- Smallpox
- Snoring
- Social anxiety disorder (social phobia)
- Soft palate cancer
- Soft tissue sarcoma
- Solar keratosis
- Solar lentigines
- Solitary fibrous tumor
- Solitary rectal ulcer syndrome
- Somatic symptom disorder
- Somnambulism
- Sore throat
- Spasmodic torticollis
- Specific phobias
- Specific reading disability
- Spermatocele
- Spider bites
- Spina bifida
- Spinal arteriovenous malformation (AVM)
- Spinal cord injury
- Spinal cord tumor
- Spinal curvature
- Spinal fluid leak
- Spinal headaches
- Spinal stenosis
- Spinal tumor and spinal mass
- Splenomegaly
- Spondylosis, cervical
- Spontaneous coronary artery dissection (SCAD)
- Sprained ankle
- Sprains
- Squamous cell carcinoma of the skin
- Stage 4 (metastatic) colon cancer
- Stage 4 prostate cancer
- Stammering
- Staph infections
- STDs
- Steele-Richardson-Olszewski syndrome
- Stein-Leventhal syndrome
- Stenosing tenosynovitis
- Stenosis, aortic valve
- Stenosis, mitral valve
- Stenosis, pulmonary valve
- Stenosis, pyloric
- Stenosis, spinal
- Stevens-Johnson syndrome
- Stings, bee
- Stings, jellyfish
- Stings, scorpion
- Stomach cancer
- Stomach flu
- Stomach polyps
- Stomatodynia
- Stool holding
- Strawberry hemangioma
- Strep throat
- Stress cardiomyopathy
- Stress fractures
- Stress incontinence
- Stretch marks
- Stroke
- Stump pain
- Stuttering
- Stye (sty)
- Subarachnoid hemorrhage
- Subconjunctival hemorrhage (broken blood vessel in eye)
- Subfertility
- Substance abuse disorder
- Substance use disorder
- Sudden cardiac arrest
- Sudden infant death syndrome (SIDS)
- Suicide
- Suicide and suicidal thoughts
- Sun allergy
- Sun poisoning
- Sunburn
- Sunken chest
- Supranuclear palsy
- Supraventricular tachycardia
- Suspicious breast lumps
- SVT
- Sweating and body odor
- Sweating, abnormally excessive
- Swelling
- Swimmer’s ear
- Swimmer’s itch
- Swollen knee
- Swollen lymph nodes
- Syndrome X
- Synostosis
- Synovial sarcoma
- Syphilis
- Syringomyelia
- Systemic exertional intolerance disease
- Systemic lupus erythematosus
- Systemic mastocytosis
- Systemic sclerosis
T
- T-cell lymphoma
- Tachycardia
- Takayasu’s arteritis
- Takotsubo cardiomyopathy
- Tapeworm infection
- TAPVR
- Tay-Sachs disease
- TB
- TBI
- Tears, decreased production
- Teen depression
- Teeth grinding
- Teeth grinding (bruxism)
- Temporal arteritis
- Temporal lobe seizure
- Temporomandibular disorders
- Temporomandibular joint disorders
- TEN
- Tendinitis
- Tendinitis, Achilles
- Tendinitis, patellar
- Tendinopathy
- Tennis elbow
- Tenosynovitis, de Quervain’s
- Tension headache
- Testicle, retractile
- Testicle, undescended
- Testicular cancer
- Testicular torsion
- Testosterone deficiency
- Tetanus
- Tetralogy of Fallot
- TGA
- Thalassemia
- Thoracic aortic aneurysm
- Thoracic outlet syndrome
- Three-day measles
- Throat cancer
- Thromboangiitis obliterans
- Thrombocytopenia
- Thrombocytosis
- Thrombophlebitis
- Thrush, oral
- Thumb arthritis
- Thunderclap headaches
- Thyroid cancer
- Thyroid gland enlargement
- Thyroid nodules
- Thyroid, overactive
- Thyroiditis, chronic lymphocytic
- TIA
- Tic douloureux
- Tinea barbae
- Tinea capitis
- Tinea corporis
- Tinea cruris
- Tinea pedis
- Tinea versicolor
- Tinnitus
- TMD
- TMJ disorders
- Toe walking in children
- Toenail fungus
- Tongue cancer
- Tongue tie
- Tongue-tie (ankyloglossia)
- Tonic-clonic (grand mal) seizure
- Tonic-clonic seizure
- Tonsil cancer
- Tonsillitis
- Tooth abscess
- Tooth decay
- Torn meniscus
- Torsion, testicular
- Torticollis, spasmodic
- Total anomalous pulmonary venous connection
- Total anomalous pulmonary venous return (TAPVR)
- Tourette syndrome
- Tourette’s
- Toxemia
- Toxic epidermal necrolysis
- Toxic hepatitis
- Toxic shock syndrome
- Toxoplasmosis
- Tracheomalacia
- Trachoma
- Transient global amnesia
- Transient ischemic attack (TIA)
- Transposition of great vessels
- Transposition of the great arteries
- Transverse myelitis
- Traumatic brain injury
- Traumatic grief
- Traveler’s diarrhea
- Trichinosis
- Trichomoniasis
- Trichotillomania (hair-pulling disorder)
- Tricuspid atresia
- Tricuspid valve disease
- Tricuspid valve regurgitation
- Trigeminal neuralgia
- Trigger finger
- Triple X syndrome
- Trisomy 21 syndrome
- Trisomy X
- Trouble swallowing
- Truncus arteriosus
- Trypanosomiasis, American
- Tuberculosis
- Tuberous sclerosis
- Tubular adenoma of the colon
- Tumor, salivary gland
- Tumor, spinal
- Turner syndrome
- Tympanic membrane perforation
- Type 1 diabetes
- Type 1 diabetes in children
- Type 2 diabetes
- Type 2 diabetes in children
- Typhoid fever
U
V
- Vascular claudication
- Vascular dementia
- Vascular rings
- Vasculitis
- Vasomotor rhinitis
- Vasovagal syncope
- vCJD
- Velocardiofacial syndrome
- Venereal warts
- Ventricular fibrillation
- Ventricular premature contraction
- Ventricular septal defect (VSD)
- Ventricular tachycardia
- Vertebral tumor
- Vesicoureteral reflux
- Vestibular schwannoma
- VEXAS syndrome
- Viral gastroenteritis (stomach flu)
- Viral hemorrhagic fevers
- Vitamin deficiency anemia
- Vitiligo
- Vocal cord paralysis
- Vocal fold paralysis
- Voice disorders
- Von Recklinghausen’s disease
- Von Recklinghausen’s neurofibromatosis
- Von Recklinghausen’s phakomatosis
- Von Willebrand disease
- VPCs
- Vulvar cancer
- Vulvodynia