A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abdominal aortic aneurysm Absence seizure Acanthosis nigricans Achalasia Achilles tendinitis Achilles tendon rupture ACL injury Acne Acoustic neuroma Acromegaly Actinic keratosis Acute coronary syndrome Acute flaccid myelitis (AFM) Acute kidney failure Acute liver failure Acute lymphocytic leukemia Acute myelogenous leukemia Acute sinusitis Addison's disease Adenomyosis Adjustment disorders Adrenal cancer Adrenoleukodystrophy Adult attention-deficit/hyperactivity disorder (ADHD) Adult Still's disease Age spots (liver spots) Agoraphobia Airplane ear Albinism Alcohol intolerance Alcohol poisoning Alcohol use disorder Alcoholic hepatitis Allergies Alpha-gal syndrome Alzheimer's disease Ambiguous genitalia Ameloblastoma Amenorrhea Amnesia Amniotic fluid embolism Ampullary cancer Amyloidosis Amyotrophic lateral sclerosis (ALS) Anal cancer Anal fissure Anal itching Anaphylaxis Anemia Angelman syndrome Angina Angiosarcoma Anhidrosis Ankylosing spondylitis Anorexia nervosa Anorgasmia in women Anterior prolapse (cystocele) Anthrax Antibiotic-associated diarrhea Antiphospholipid syndrome Antisocial personality disorder Anxiety disorders Aortic dissection Aortic valve disease Aortic valve regurgitation Aortic valve stenosis Aphasia Aplastic anemia Appendicitis ARDS Arteriosclerosis / atherosclerosis Arteriovenous fistula Arteriovenous malformation Arthritis Asbestosis Ascariasis Aspergillosis Asthma Asthma attack Astigmatism Astrocytoma Ataxia Atelectasis Athlete's foot Atopic dermatitis (eczema) Atrial fibrillation Atrial septal defect (ASD) Atrial tachycardia Atrioventricular canal defect Atrioventricular nodal reentry tachycardia (AVNRT) Attention-deficit/hyperactivity disorder (ADHD) in children Atypical depression Atypical hyperplasia of the breast Autism spectrum disorder Autoimmune hepatitis Autoimmune pancreatitis Autonomic neuropathy Avascular necrosis B Baby acne Back pain Bacterial vaginosis Bad breath Bags under eyes Baker's cyst Balance problems Barrett's esophagus Bartholin's cyst Basal cell carcinoma Bed-wetting Bedbugs Bedsores (pressure ulcers) Bee sting Behcet's disease Bell's palsy Benign paroxysmal positional vertigo (BPPV) Benign peripheral nerve tumor Benign prostatic hyperplasia (BPH) Bicuspid aortic valve Bile reflux Binge-eating disorder Bipolar disorder Bird flu (avian influenza) Black hairy tongue Bladder cancer Bladder exstrophy Bladder stones Blastocystis hominis Blepharitis Blocked tear duct Blood in urine (hematuria) Body dysmorphic disorder Body lice Boils and carbuncles Bone cancer Bone metastasis Bone spurs Borderline personality disorder Botulism Brachial plexus injury Bradycardia Brain aneurysm Brain AVM (arteriovenous malformation) Brain metastases Brain tumor Breast cancer Breast cysts Breast pain Broken ankle Broken arm Broken collarbone Broken foot Broken hand Broken heart syndrome Broken leg Broken nose Broken ribs Broken toe Broken wrist Bronchiolitis Bronchitis Brucellosis Brugada syndrome Bruxism (teeth grinding) Buerger's disease Bulimia nervosa Bullous pemphigoid Bundle branch block Bunions Burning mouth syndrome Burns Bursitis C C. difficile infection Calciphylaxis Cancer Canker sore Carbon monoxide poisoning Carcinoid syndrome Carcinoid tumors Carcinoma of unknown primary Cardiogenic shock Cardiomyopathy Carotid artery disease Carpal tunnel syndrome Castleman disease Cataracts Cavernous malformations Cavities/tooth decay Celiac disease Cellulite Cellulitis Central sleep apnea Cerebral palsy Cervical cancer Cervical dystonia Cervical spondylosis Cervicitis Chagas disease Charcot-Marie-Tooth disease Chemo brain Chest pain Chiari malformation Chickenpox Chilblains Child abuse Childhood apraxia of speech Childhood asthma Childhood obesity Childhood schizophrenia Chlamydia trachomatis Cholangiocarcinoma (bile duct cancer) Cholecystitis Cholera Cholestasis of pregnancy Chondrosarcoma Chordoma Choroid plexus carcinoma Chronic cough Chronic daily headaches Chronic exertional compartment syndrome Chronic fatigue syndrome Chronic granulomatous disease Chronic hives Chronic kidney disease Chronic lymphocytic leukemia Chronic myelogenous leukemia Chronic pelvic pain in women Chronic sinusitis Chronic traumatic encephalopathy Churg-Strauss syndrome Cirrhosis Claudication Cleft lip and cleft palate Clubfoot Cluster headache Coarctation of the aorta Cold sore Cold urticaria Colic Colon cancer Colon polyps Color blindness Coma Common cold Common cold in babies Common warts Complex regional pain syndrome Complicated grief Compulsive gambling Compulsive sexual behavior Concussion Congenital adrenal hyperplasia Congenital heart defects in children Congenital heart disease in adults Congenital mitral valve anomalies Congenital myopathies Conjoined twins Constipation Constipation in children Contact dermatitis Convergence insufficiency COPD Corns and calluses Coronary artery disease Coronavirus disease 2019 (COVID-19) Corticobasal degeneration Costochondritis Cough headaches Cradle cap Craniopharyngioma Craniosynostosis Creutzfeldt-Jakob disease Crohn's disease Croup Cryoglobulinemia Cryptosporidium infection Cushing syndrome Cutaneous B-cell lymphoma Cutaneous T-cell lymphoma Cyclic vomiting syndrome Cyclospora infection Cyclothymia (cyclothymic disorder) Cystic fibrosis Cystitis Cytomegalovirus (CMV) infection D Dandruff De Quervain's tenosynovitis Deep vein thrombosis (DVT) Dehydration Delayed ejaculation Delayed sleep phase Delirium Dementia Dengue fever Depersonalization-derealization disorder Depression (major depressive disorder) Dermatitis Dermatofibrosarcoma protuberans Dermatographia Dermatomyositis Desmoid tumors Deviated septum Diabetes Diabetes insipidus Diabetic coma Diabetic hyperosmolar syndrome Diabetic hypoglycemia Diabetic ketoacidosis Diabetic nephropathy Diabetic neuropathy Diabetic retinopathy Diaper rash Diarrhea Diffuse idiopathic skeletal hyperostosis (DISH) DiGeorge syndrome (22q11.2 deletion syndrome) Dilated cardiomyopathy Diphtheria Dislocated elbow Dislocated shoulder Dislocation Dissociative disorders Diverticulitis Dizziness Double uterus Double-outlet right ventricle Down syndrome Dressler syndrome Drug addiction (substance use disorder) Drug allergy Dry eyes Dry macular degeneration Dry mouth Dry skin Dry socket Ductal carcinoma in situ (DCIS) Dumping syndrome Dupuytren's contracture Dural arteriovenous fistulas Dust mite allergy Dwarfism Dysarthria Dyshidrosis Dyslexia Dysphagia Dystonia E E. coli Ear infection (middle ear) Earwax blockage Eating disorders Ebola virus and Marburg virus Ebstein anomaly Ectopic pregnancy Ectropion Edema Egg allergy Ehlers-Danlos syndrome Ehrlichiosis and anaplasmosis Eisenmenger syndrome Elevated blood pressure Embryonal tumors Emphysema Encephalitis Encopresis End-stage renal disease Endocarditis Endometrial cancer Endometriosis Enlarged breasts in men (gynecomastia) Enlarged heart Enlarged liver Enlarged spleen (splenomegaly) Entropion Eosinophilic esophagitis Ependymoma Epidermoid cysts Epidermolysis bullosa Epididymitis Epiglottitis Epilepsy Epithelioid sarcoma Erectile dysfunction Esophageal cancer Esophageal spasms Esophageal varices Esophagitis Essential thrombocythemia Essential tremor Esthesioneuroblastoma Ewing sarcoma Exercise headaches Exercise-induced asthma External compression headaches Eye floaters Eye melanoma Eyestrain F Factitious disorder Factor V Leiden Familial adenomatous polyposis Familial hypercholesterolemia Familial Mediterranean fever Farsightedness Febrile seizure Fecal incontinence Female infertility Female sexual dysfunction Fetal alcohol syndrome Fetal macrosomia Fever Fibroadenoma Fibrocystic breasts Fibromuscular dysplasia Fibromyalgia Fibrous dysplasia Flatfeet Floor of the mouth cancer Folliculitis Food allergy Food poisoning Foot drop Frontal lobe seizures Frontotemporal dementia Frostbite Frozen shoulder Fuchs' dystrophy Functional dyspepsia Functional neurologic disorders/conversion disorder G Galactorrhea Gallbladder cancer Gallstones Ganglion cyst Gangrene Gas and gas pains Gastritis Gastroesophageal reflux disease (GERD) Gastrointestinal bleeding Gastrointestinal stromal tumor (GIST) Gastroparesis Gaucher disease Gender dysphoria Generalized anxiety disorder Genital herpes Genital warts Geographic tongue Gestational diabetes Giant cell arteritis Giardia infection (giardiasis) Gilbert's syndrome Gingivitis Glaucoma Glioblastoma Glioma Glomerulonephritis Goiter Golfer's elbow Gonorrhea Gout Grand mal seizure Granuloma annulare Granulomatosis with polyangiitis Graves' disease Greenstick fractures Group B strep disease Growing pains Growth plate fractures Guillain-Barre syndrome H H1N1 flu (swine flu) Hair loss Hairy cell leukemia Hammertoe and mallet toe Hamstring injury Hand-foot-and-mouth disease Hangovers Hantavirus pulmonary syndrome Hashimoto's disease Hay fever Head lice Headaches in children Hearing loss Heart arrhythmia Heart attack Heart disease Heart failure Heart murmurs Heart palpitations Heart valve disease Heartburn Heat exhaustion Heat rash Heatstroke Helicobacter pylori (H. pylori) infection Hemangioma Hemifacial spasm Hemochromatosis Hemolytic uremic syndrome (HUS) Hemophilia Hemorrhoids Henoch-Schonlein purpura Hepatitis A Hepatitis B Hepatitis C Hepatocellular carcinoma Hepatopulmonary syndrome Hereditary hemorrhagic telangiectasia Herniated disk Hiatal hernia Hiccups Hidradenitis suppurativa High blood pressure (hypertension) High blood pressure in children High cholesterol Hilar cholangiocarcinoma Hip dysplasia Hip fracture Hip labral tear Hirschsprung's disease Hirsutism Histoplasmosis HIV/AIDS Hives and angioedema Hoarding disorder Hodgkin's lymphoma (Hodgkin's disease) Horner syndrome Hot flashes HPV infection Hunter syndrome Huntington's disease Hurthle cell cancer Hydrocele Hydrocephalus Hydronephrosis Hypercalcemia Hypereosinophilic syndrome Hyperglycemia in diabetes Hyperhidrosis Hyperoxaluria and oxalosis Hyperparathyroidism Hyperthyroidism (overactive thyroid) Hypertrophic cardiomyopathy Hypoglycemia Hyponatremia Hypoparathyroidism Hypopituitarism Hypoplastic left heart syndrome Hypospadias Hypothermia Hypothyroidism (underactive thyroid) I Ice cream headaches Ichthyosis vulgaris Idiopathic hypersomnia IgA nephropathy (Berger's disease) Illness anxiety disorder Immune thrombocytopenia (ITP) Impacted wisdom teeth Impetigo Incompetent cervix Indigestion Infant jaundice Infant reflux Infectious diseases Infertility Inflammatory bowel disease (IBD) Inflammatory breast cancer Influenza (flu) Ingrown hair Ingrown toenails Inguinal hernia Insomnia Intermittent explosive disorder Interstitial cystitis Interstitial lung disease Intestinal ischemia Intestinal obstruction Intracranial hematoma Intracranial venous malformations Intussusception Invasive lobular carcinoma Iritis Iron deficiency anemia Irritable bowel syndrome Ischemic colitis Itchy skin (pruritus) J Jaw tumors and cysts Jellyfish stings Jet lag disorder Jock itch Juvenile fibromyalgia Juvenile idiopathic arthritis K Kaposi's sarcoma Kawasaki disease Keratitis Keratoconus Keratosis pilaris Kidney cancer Kidney cysts Kidney infection Kidney stones Kleptomania Klinefelter syndrome Klippel-Trenaunay syndrome Knee bursitis Knee pain Krabbe disease Kyphosis L Lactose intolerance Laryngitis Latex allergy Lazy eye (amblyopia) Lead poisoning Left ventricular hypertrophy Legg-Calve-Perthes disease Legionnaires' disease Leiomyosarcoma Leukemia Leukoplakia Lewy body dementia Lice Lichen nitidus Lichen planus Lichen sclerosus Limited scleroderma Lip cancer Lipoma Liposarcoma Listeria infection Liver cancer Liver disease Liver hemangioma Lobular carcinoma in situ (LCIS) Long QT syndrome Low blood pressure (hypotension) Low sex drive in women Low sperm count Lung cancer Lupus Lupus nephritis Lyme disease Lymphedema Lymphoma Lynch syndrome M Malaria Male breast cancer Male hypogonadism Male infertility Malignant hyperthermia Malignant peripheral nerve sheath tumors Mammary duct ectasia Marfan syndrome Mastitis MCAD deficiency Measles Median arcuate ligament syndrome (MALS) Medication overuse headaches Medulloblastoma Melanoma Membranous nephropathy Meniere's disease Meningioma Meningitis Menopause Menorrhagia (heavy menstrual bleeding) Menstrual cramps Mental illness Meralgia paresthetica Merkel cell carcinoma Mesenteric ischemia Mesenteric lymphadenitis Mesothelioma Metabolic syndrome Metachromatic leukodystrophy Metatarsalgia Microcephaly Microscopic colitis Migraine Migraine with aura Mild cognitive impairment (MCI) Milia Milk allergy Miscarriage Mitral valve disease Mitral valve prolapse Mitral valve regurgitation Mitral valve stenosis Mittelschmerz Mixed connective tissue disease Molar pregnancy Mold allergy Moles Molluscum contagiosum Monoclonal gammopathy of undetermined significance (MGUS) Mononucleosis Morning sickness Morphea Morton's neuroma Mosquito bites Mouth cancer Moyamoya disease MRSA infection Multiple myeloma Multiple sclerosis Multiple system atrophy (MSA) Multisystem inflammatory syndrome in children (MIS-C) and COVID-19 Mumps Muscle cramp Muscle strains Muscular dystrophy Myasthenia gravis Myelodysplastic syndromes Myelofibrosis Myocardial ischemia Myocarditis Myoclonus Myofascial pain syndrome Myxofibrosarcoma N Naegleria infection Nail fungus Narcissistic personality disorder Narcolepsy Nasal and paranasal tumors Nasal polyps Nasopharyngeal carcinoma Nearsightedness Neck pain Nephrogenic systemic fibrosis Nephrotic syndrome Neuroblastoma Neurodermatitis Neuroendocrine tumors Neurofibroma Neurofibromatosis Neuromyelitis optica Nickel allergy Nicotine dependence Niemann-Pick Nightmare disorder Non-Hodgkin's lymphoma Nonalcoholic fatty liver disease Nonallergic rhinitis Nonmelanoma skin cancer Noonan syndrome Norovirus infection O Obesity Obsessive-compulsive disorder (OCD) Obstructive sleep apnea Occupational asthma Ocular rosacea Oligodendroglioma Oppositional defiant disorder (ODD) Optic neuritis Oral lichen planus Oral thrush Orchitis Orthostatic hypotension (postural hypotension) Osgood-Schlatter disease Osteoarthritis Osteochondritis dissecans Osteomalacia Osteomyelitis Osteoporosis Osteosarcoma Ovarian cancer Ovarian cysts Ovarian hyperstimulation syndrome Overactive bladder P Paget's disease of bone Paget's disease of the breast Painful intercourse (dyspareunia) Pancreatic cancer Pancreatic cysts Pancreatic neuroendocrine tumors Pancreatitis Panic attacks and panic disorder Paraganglioma Paraneoplastic syndromes of the nervous system Parkinson's disease Parotid tumors Partial anomalous pulmonary venous return Parvovirus infection Patellar tendinitis Patellofemoral pain syndrome Patent ductus arteriosus (PDA) Patent foramen ovale Peanut allergy Pectus carinatum Pectus excavatum Pediatric brain tumors Pediatric obstructive sleep apnea Pediatric thrombocytopenia Pelvic inflammatory disease (PID) Pemphigus Penicillin allergy Peptic ulcer Pericardial effusion Pericarditis Perimenopause Periodontitis Peripheral artery disease (PAD) Peripheral nerve injuries Peripheral nerve tumors Peripheral neuropathy Peritonitis Persistent depressive disorder (dysthymia) Persistent post-concussive symptoms (Post-concussion syndrome) Personality disorders Pet allergy Peyronie's disease Phantom pain Phenylketonuria (PKU) Pheochromocytoma Pilonidal cyst Pinched nerve Pineoblastoma Pink eye (conjunctivitis) Pinworm infection Pituitary tumors Pityriasis rosea Placenta accreta Placenta previa Placental abruption Plague Plantar fasciitis Plantar warts Pleurisy Pneumonia Pneumonitis Pneumothorax Poison ivy rash Polio Polycystic kidney disease Polycystic ovary syndrome (PCOS) Polycythemia vera Polyhydramnios Polymorphous light eruption Polymyalgia rheumatica Polymyositis Popliteal artery entrapment syndrome Porphyria Post-polio syndrome Post-traumatic stress disorder (PTSD) Posterior cortical atrophy Posterior cruciate ligament injury Posterior vaginal prolapse (rectocele) Postherpetic neuralgia Postpartum depression Postpartum preeclampsia Postpartum thyroiditis Prader-Willi syndrome Precocious puberty Prediabetes Preeclampsia Premature birth Premature ejaculation Premature ventricular contractions (PVCs) Premenstrual syndrome (PMS) Presbyopia Prescription drug abuse Preterm labor Priapism Primary aldosteronism Primary biliary cholangitis Primary immunodeficiency Primary lateral sclerosis (PLS) Primary ovarian insufficiency Primary progressive aphasia Primary sclerosing cholangitis Proctitis Progeria Progressive supranuclear palsy Prolactinoma Prostate cancer Prostatitis Pseudobulbar affect Pseudocholinesterase deficiency Pseudogout Pseudomembranous colitis Pseudotumor cerebri Psoriasis Psoriatic arthritis Pubic lice (crabs) Pulmonary atresia Pulmonary atresia with intact ventricular septum Pulmonary atresia with ventricular septum defect Pulmonary edema Pulmonary embolism Pulmonary fibrosis Pulmonary hypertension Pulmonary valve stenosis Pyloric stenosis Pyoderma gangrenosum Q Q fever R Rabies Radiation enteritis Radiation sickness Ramsay Hunt syndrome Raynaud's disease Reactive arthritis Reactive attachment disorder Rectal cancer Rectovaginal fistula Recurrent breast cancer REM sleep behavior disorder Renal artery stenosis Residual limb pain Respiratory syncytial virus (RSV) Restless legs syndrome Retinal detachment Retinal diseases Retinoblastoma Retractile testicle Retrograde ejaculation Rett syndrome Reye's syndrome Rhabdomyosarcoma Rheumatic fever Rheumatoid arthritis Rickets Ringworm (body) Ringworm (scalp) Rocky Mountain spotted fever Rosacea Roseola Rotator cuff injury Rotavirus Rubella Rumination syndrome Ruptured eardrum (perforated eardrum) Ruptured spleen S Sacral dimple Sacroiliitis Salivary gland tumors Salmonella infection Sarcoidosis Sarcoma Scabies Scarlet fever Schizoaffective disorder Schizoid personality disorder Schizophrenia Schizotypal personality disorder Schwannoma Sciatica Scleroderma Sclerosing mesenteritis Scoliosis Scorpion sting Scrotal masses Seasonal affective disorder (SAD) Sebaceous carcinoma Seborrheic dermatitis Seborrheic keratosis Secondary hypertension Seizures Self-injury/cutting Separated shoulder Separation anxiety disorder Sepsis Septic arthritis Serotonin syndrome Severe acute respiratory syndrome (SARS) Sex headaches Sexually transmitted diseases (STDs) Shaken baby syndrome Sheehan's syndrome Shellfish allergy Shigella infection Shin splints Shingles Short bowel syndrome Sick sinus syndrome Sickle cell anemia Sinus headaches Sjogren's syndrome Skin cancer Sleep apnea Sleep terrors (night terrors) Sleep-related eating disorder Sleepwalking Small bowel cancer Small bowel prolapse (enterocele) Small intestinal bacterial overgrowth (SIBO) Small vessel disease Smallpox Snoring Social anxiety disorder (social phobia) Soft palate cancer Soft tissue sarcoma Solitary fibrous tumor Solitary rectal ulcer syndrome Somatic symptom disorder Sore throat Soy allergy Specific phobias Spermatocele Spider bites Spina bifida Spinal arteriovenous malformation (AVM) Spinal cord injury Spinal cord tumor Spinal headaches Spinal stenosis Spontaneous coronary artery dissection (SCAD) Sprained ankle Sprains Squamous cell carcinoma of the skin Stage 4 prostate cancer Staph infections Stevens-Johnson syndrome Stickler syndrome Stomach cancer Stomach polyps Strep throat Stress fractures Stress incontinence Stretch marks Stroke Stuttering Sty Subarachnoid hemorrhage Subconjunctival hemorrhage (broken blood vessel in eye) Sudden cardiac arrest Sudden infant death syndrome (SIDS) Suicide and suicidal thoughts Sun allergy Sunburn Supraventricular tachycardia Sweating and body odor Sweet's syndrome Swimmer's ear Swimmer's itch Swollen knee Swollen lymph nodes Synovial sarcoma Syphilis Syringomyelia Systemic mastocytosis T Tachycardia Takayasu's arteritis Tapeworm infection Tay-Sachs disease Teen depression Temporal lobe seizure TEN Tendinitis Tennis elbow Tension headache Testicular cancer Testicular torsion Tetanus Tetralogy of Fallot Thalassemia Thoracic aortic aneurysm Thoracic outlet syndrome Throat cancer Thrombocytopenia (low platelet count) Thrombocytosis Thrombophlebitis Thumb arthritis Thunderclap headaches Thyroid cancer Thyroid nodules Tinea versicolor Tinnitus TMJ disorders Toe walking in children Tongue-tie (ankyloglossia) Tonsil cancer Tonsillitis Tooth abscess Torn meniscus Total anomalous pulmonary venous return Tourette syndrome Toxic hepatitis Toxic shock syndrome Toxoplasmosis Trachoma Transient global amnesia Transient ischemic attack (TIA) Transposition of the great arteries Transverse myelitis Traumatic brain injury Traveler's diarrhea Trichinosis Trichomoniasis Trichotillomania (hair-pulling disorder) Tricuspid atresia Tricuspid valve regurgitation Trigeminal neuralgia Trigger finger Triple X syndrome Truncus arteriosus Tuberculosis Tuberous sclerosis Tularemia Turner syndrome Type 1 diabetes Type 1 diabetes in children Type 2 diabetes Type 2 diabetes in children Typhoid fever U Ulcerative colitis Umbilical hernia Undescended testicle Undifferentiated pleomorphic sarcoma Ureteral cancer Ureteral obstruction Urethral stricture Urinary incontinence Urinary tract infection (UTI) Urine color Uterine fibroids Uterine polyps Uterine prolapse Uveitis V Vaginal agenesis Vaginal atrophy Vaginal cancer Vaginitis Valley fever Varicocele Varicose veins Vascular dementia Vascular rings Vasculitis Vasovagal syncope Ventricular fibrillation Ventricular septal defect (VSD) Ventricular tachycardia Vertebral tumor Vesicoureteral reflux Viral gastroenteritis (stomach flu) Viral hemorrhagic fevers Vitamin deficiency anemia Vitiligo Vocal cord paralysis Voice disorders Von Willebrand disease Vulvar cancer Vulvodynia W Waldenstrom macroglobulinemia West Nile virus Wet macular degeneration Wheat allergy Whiplash Whipple's disease Whooping cough Wilms' tumor Wilson's disease Wolff-Parkinson-White (WPW) syndrome Wrinkles Wrist pain X X-linked agammaglobulinemia Y Yeast infection (vaginal) Yellow fever Yips Z Zika virus Zollinger-Ellison syndrome
