Definitions
-
A
- Abdominal aortic aneurysm
- Abdominal distension
- Abdominal obesity
- Abdominal pain
- Abrasion
- Abscess
- Acanthosis nigricans
- Achalasia
- Achilles tendinitis
- Achilles tendon rupture
- Achondroplasia
- Acidosis
- Acne
- Acromegaly
- Actinic keratosis
- Acute coronary syndrome
- Acute lymphoblastic leukemia
- Acute myeloid leukemia
- Acute pancreatitis
- Acute renal failure
- Acute respiratory disease syndrome
- Addison's disease
- Adenitis
- Adenocarcinoma
- Adenoma
- Adenomyosis
- Adhesive capsulitis of shoulder
- Adjustment disorder
- Adrenal fatigue
- Adrenal insufficiency
- Adrenoleukodystrophy
- Adult attention-deficit/hyperactivity disorder
- African trypanosomiasis
- Aggression
- Agnosia
- Agoraphobia
- Akathisia
- Albinism
- Alcohol abuse
- Alcohol intoxication
- Alcohol withdrawal
- Alcoholism
- Allergic rhinitis
- Allergic sinusitis
- Alopecia
- Alopecia areata
- Altitude sickness
- Alveolar osteitis
- Alzheimer's disease
- Amebiasis
- Amenorrhea
- Amnesia
- Amyloidosis
- Amyotrophic lateral sclerosis
- Anal cancer
- Anal fissure
- Anal fistula
- Anaphylaxis
- Anasarca
- Androgenic alopecia
- Andropause
- Anemia
- Anemia of chronic disease
- Anencephaly
- Aneuploidy
- Aneurysm
- Angelman syndrome
- Anger
- Angina pectoris
- Angioedema
- Angular cheilitis
- Anhedonia
- Ankle pain
- Ankyloglossia
- Ankylosing spondylitis
- Anorexia nervosa
- Anterior cruciate ligament injury
- Anthrax
- Antiphospholipid syndrome
- Antisocial behavior
- Antisocial personality disorder
- Anxiety
- Anxiety disorder
- Aortic dissection
- Aortic stenosis
- Apathy
- Aphasia
- Aplastic anemia
- Appendicitis
- Appendix cancer
- Appetite loss
- Apraxia
- Apraxia
- Arm pain
- Arnold-Chiari malformation
- Arteriovenous malformation
- Arthritis
- Arthropathy
- Ascites
- Asperger syndrome
- Asphyxia
- Aspiration pneumonia
- Asthenopia
- Asthma
- Astigmatism
- Ataxia
- Atelectasis
- Atheroma
- Atherosclerosis
- Atopic dermatitis
- Atrial fibrillation
- Atrial flutter
- Atrial septal defect
- Atrophy
- Attention deficit/hyperactivity disorder
- Attention-deficit hyperactivity disorder
- Atypical pneumonia
- Auditory processing disorder
- Aura
- Autism
- Autoimmune thyroiditis
- Avascular necrosis
- Avitaminosis
- Avoidant personality disorder
- Avulsion injury
- Azoospermia
- Azotemia
-
B
- Baby acne
- Baby colic
- Back pain
- Bacterial arthritis
- Bacterial vaginosis
- Baker cyst
- Balanitis
- Barrett's esophagus
- Bartholin's cyst
- Basal cell carcinoma
- Bed bug infestation
- Bee sting
- Behcet disease
- Bell's palsy
- Benign paroxysmal positional vertigo
- Benign prostatic hyperplasia
- Beriberi
- Beta thalassemia
- Bicuspid aortic valve
- Biliary colic
- Binge eating
- Bipolar II disorder
- Bipolar disorder
- Bipolar disorder in children
- Bird flu
- Birthmark
- Black eye
- Blackheads
- Blackout
- Bladder cancer
- Bleeding
- Bleeding gums
- Blepharitis
- Blighted ovum
- Blindness
- Blister
- Bloating
- Blood blister
- Blood in stool
- Blood-borne disease
- Blue berry muffin syndrome
- Blurred vision
- Body dysmorphic disorder
- Body lice
- Body odor
- Bone disease
- Bone fracture
- Bone loss
- Bone metastasis
- Bone spur
- Bone tumor
- Borderline personality disorder
- Boredom
- Botulism
- Bovine spongiform encephalopathy
- Bradycardia
- Brain damage
- Brain death
- Brain hemorrhage
- Brain tumor
- Breast cancer
- Breast cyst
- Breast lump
- Breast pain
- Broken collarbone (clavicle fracture)
- Broken nose
- Bronchiectasis
- Bronchiolitis
- Bronchitis
- Brucellosis
- Brugada syndrome
- Bruise
- Bruxism
- Bubonic plague
- Bulimia nervosa
- Bullous pemphigoid
- Bunions
- Burkitt's lymphoma
- Burn
- Burning feet syndrome
- Burning mouth syndrome
- Bursitis
- Buruli ulcer
-
C
- Cachexia
- Cachexia
- Callus
- Candidiasis
- Canker sore
- Carbon monoxide poisoning
- Carbuncle
- Carcinoid
- Carcinoid tumor
- Carcinoma
- Cardiac arrest
- Cardiac arrhythmia
- Cardiac tamponade
- Cardiogenic shock
- Cardiomegaly
- Cardiomyopathy
- Carpal tunnel syndrome
- Cat scratch fever
- Cataract
- Catarrh
- Catatonia
- Cauda equina syndrome
- Cauliflower ear
- Celiac disease
- Cellulite
- Cellulitis
- Cerebral edema
- Cerebral palsy
- Cervical cancer
- Cervical intraepithelial neoplasia
- Cervicitis
- Chagas disease
- Chalazion
- Charcot-Marie-Tooth disorder
- Charley horse
- Cheilitis
- Chemical burn
- Cherry angioma
- Chest infection
- Chest pain
- Chickenpox
- Chikungunya
- Chilblains
- Childhood obesity
- Chills
- Chlamydia infection
- Choking
- Cholangiocarcinoma
- Cholangitis
- Cholecystitis
- Cholera
- Cholestasis
- Cholesteatoma
- Chondromalacia patellae
- Choriocarcinoma
- Chronic inflammatory demyelinating polyneuropathy
- Chronic lymphocytic leukemia
- Chronic myelogenous leukemia
- Chronic obstructive pulmonary disease
- Chronic pain
- Chronic pancreatitis
- Chronic renal failure
- Chronic venous insufficiency
- Cirrhosis
- Claudication
- Cleft palate
- Clostridium difficile colitis
- Club foot
- Cluster headaches
- Coagulopathy
- Coarctation of the aorta
- Coccidioidomycosis
- Coccydynia
- Colitis
- Colles' fracture
- Color blindness
- Colorectal cancer
- Coma
- Comedo
- Common cold
- Community-acquired pneumonia
- Compartment syndrome
- Complex regional pain syndrome
- Compulsive behavior
- Compulsive hoarding
- Concussion
- Conduct disorder
- Conductive hearing loss
- Congenital adrenal hyperplasia
- Congenital heart defects in children
- Congenital rubella syndrome
- Conjoined twins
- Conjunctivitis
- Connective tissue disease
- Constipation
- Contact dermatitis
- Contractions
- Conversion disorder
- Convulsion
- Corn
- Corneal abrasion
- Coronary artery disease
- Coronavirus disease 2019 (COVID-19)
- Corticobasal degeneration (corticobasal syndrome)
- Costochondritis
- Cough
- Cradle cap
- Cramp
- Craniosynostosis
- Crepitus
- Creutzfeldt-Jakob disease
- Crohn's disease
- Croup
- Crying
- Cryptorchidism
- Cushing syndrome
- Cutaneous leishmaniasis
- Cyanosis
- Cyclothymia
- Cyst
- Cystic fibrosis
- Cysticercosis
- Cystocele
-
D
- Dairy allergy
- Dandy-Walker syndrome
- De Quervain syndrome
- Deafness
- Deep vein thrombosis
- Deformity
- Degenerative changes in the spine: Is this arthritis?
- Dehydration
- Delirium
- Delirium tremens
- Delusion
- Dementia
- Demyelinating disease
- Dengue fever
- Dental abscess
- Dental caries
- Dental plaque
- Depersonalization
- Depression
- Dermatitis
- Dermatitis herpetiformis
- Dermatographic urticaria
- Dermatomyositis
- Dermoid cyst
- Desquamation
- Developmental coordination disorder
- DiGeorge syndrome
- Diabetes insipidus
- Diabetes mellitus
- Diabetic foot ulcer
- Diabetic ketoacidosis
- Diabetic neuropathy
- Diabetic retinopathy
- Diarrhea
- Diarrhea
- Diastasis recti
- Diastolic heart failure
- Dieting
- Diffuse large B-cell lymphoma
- Dilated cardiomyopathy
- Diphtheria
- Diplopia
- Dislocated shoulder
- Dislocation of hip
- Disseminated intravascular coagulation
- Dissociation
- Dissociative identity disorder
- Distal radius fracture
- Diverticulitis
- Diverticulosis
- Diverticulum
- Dizziness
- Dog attack
- Down syndrome
- Dracunculiasis
- Drooling
- Drowning
- Drug withdrawal
- Dryness
- Duchenne muscular dystrophy
- Ductal carcinoma
- Dupuytren contracture
- Dwarfism
- Dysarthria
- Dysautonomia
- Dysentery
- Dysgeusia
- Dyshidrosis
- Dyshidrotic eczema
- Dyskinesia
- Dyslexia
- Dyslipidemia
- Dysmenorrhea
- Dyspareunia
- Dysphagia
- Dysphasia
- Dysphonia
- Dysphoria
- Dyspnea
- Dysthymia
- Dystonia
- Dysuria
-
E
- Ear pain
- Ebola
- Ecchymosis
- Eclampsia
- Ectopic pregnancy
- Edema
- Edwards syndrome
- Egg allergy
- Ehlers-Danlos syndrome
- Elbow pain
- Electric shock
- Elephantiasis
- Emaciation
- Embolic stroke
- Embolism
- Encephalitis
- Encephalopathy
- Encopresis
- Endocarditis
- Endometrial cancer
- Endometrial polyp
- Endometriosis
- Enuresis
- Eosinophilia
- Eosinophilic esophagitis
- Ephelides
- Epidermoid cyst
- Epidermolysis bullosa
- Epididymitis
- Epidural hematoma
- Epiglottitis
- Epilepsy
- Erectile dysfunction
- Eructation
- Erysipelas
- Erythema
- Erythema multiforme minor
- Erythema nodosum
- Erythrophobia
- Eschar
- Esophageal cancer
- Esophageal varices
- Esophagitis
- Essential tremor
- Euphoria
- Ewing sarcoma
- Exanthem
- Exophthalmos
- Exudate
- Eye pain
- Eye twitching
-
F
- Factor V Leiden
- False pregnancy
- Farsighted
- Fasciculation
- Fatigue
- Fatty liver disease
- Fear
- Febrile seizure
- Fecal impaction
- Fetal alcohol syndrome
- Fever
- Fever of unknown origin
- Fibroadenoma
- Fibrocystic breast disease
- Fibroma
- Fibromyalgia
- Fibrosis
- Fibrosis
- Fifth disease
- Filariasis
- First trimester pregnancy
- Fissure of nipple
- Fistula
- Flaccid paralysis
- Flatfeet
- Flatulence
- Floaters
- Flushed skin
- Follicular lymphoma
- Folliculitis
- Food allergy
- Food craving
- Food intolerance
- Food poisoning
- Foodborne trematodiases
- Foot drop
- Foot pain
- Fragile X syndrome
- Frequent urination
- Frey's syndrome
- Frostbite
- Furuncle
-
G
- G6PD deficiency
- Galactosemia
- Gallbladder disease
- Gallstone
- Ganglion cyst
- Gangrene
- Gastric dumping syndrome
- Gastritis
- Gastroenteritis
- Gastroesophageal reflux disease
- Gastrointestinal perforation
- Gastrointestinal stromal tumor
- Gastroparesis
- Gastroschisis
- Gaucher disease
- Generalized anxiety disorder
- Genital herpes
- Genital wart
- Genu varum
- Geographic tongue
- Gestational diabetes
- Giardia
- Gigantism
- Gilbert's syndrome
- Gingivitis
- Glaucoma
- Glioblastoma multiforme
- Glioma
- Globus pharyngis
- Glomerulonephritis
- Glossitis
- Glossodynia
- Gluten sensitivity
- Goiter
- Golfer's elbow
- Gonorrhea
- Gout
- Graft vs host disease
- Grand mal seizure
- Granuloma
- Granuloma annulare
- Granulomatosis with polyangiitis
- Graves' disease
- Group A streptococcal infection
- Group B streptococcal infection
- Growing pains
- Guillain-Barre syndrome
- Guilt
- Guttate psoriasis
- Gynecomastia
-
H
- HELLP syndrome
- HIV/AIDS
- Hair loss
- Hairy tongue
- Halitosis
- Hallucination
- Hamartoma
- Hammer toe
- Hand, foot and mouth disease
- Hangover
- Hantavirus
- Harlequin-type ichthyosis
- Hashimoto's disease
- Head and neck cancer
- Head lice infestation
- Headache
- Hearing loss
- Heart failure
- Heart murmur
- Heart valve disease
- Heartburn
- Heel pain
- Heel spur
- Hemangioma
- Hematemesis
- Hematochezia
- Hematoma
- Hematospermia
- Hematuria
- Hemiparesis
- Hemolysis
- Hemolytic anemia
- Hemolytic disease of the newborn
- Hemophagocytic lymphohistiocytosis
- Hemophilia
- Hemoptysis
- Hemorrhage
- Hemorrhagic fever
- Hemorrhoids
- Henoch-Schönlein purpura
- Hepatic encephalopathy
- Hepatitis
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Hepatocellular carcinoma
- Hepatomegaly
- Hernia
- Herpangina
- Herpes labialis
- Herpes simplex
- Herpes zoster
- Heterochromia iridum
- Hiatal hernia
- Hiccups
- Hidradenitis suppurativa
- High-functioning autism
- Hip dislocation
- Hip fracture
- Hip pain
- Hip tendinitis
- Hirschsprung's disease
- Hirsutism
- Histrionic personality disorder
- Hives
- Hodgkin's lymphoma
- Horner's syndrome
- Hostility
- Hot flash
- Human papillomavirus infection
- Humerus fracture
- Hunger
- Huntington's disease
- Hydatid disease
- Hydrocele
- Hydrocephalus
- Hydronephrosis
- Hydrops fetalis
- Hypercalcemia
- Hypercholesterolemia
- Hyperdontia
- Hyperemesis gravidarum
- Hyperemia
- Hyperglycemia
- Hyperhidrosis
- Hyperkalemia
- Hyperlipidemia
- Hypermobility
- Hypernatremia
- Hyperparathyroidism
- Hyperpigmentation
- Hyperplasia
- Hypersexuality
- Hypersomnia
- Hypertension
- Hypertensive emergency
- Hyperthermia
- Hyperthyroidism
- Hypertriglyceridemia
- Hypertrophic cardiomyopathy
- Hypertrophy
- Hyperuricemia
- Hyperventilation
- Hypervolemia
- Hypocalcemia
- Hypochondriasis
- Hypoesthesia
- Hypoglycemia
- Hypogonadism
- Hypokalemia
- Hypokinesia
- Hyponatremia
- Hypoplastic left heart syndrome
- Hypospadias
- Hypotension
- Hypothermia
- Hypothyroidism
- Hypotonia
- Hypovitaminosis D
- Hypovolemia
- Hypoxemia
- Hypoxia
-
I
- Iatrogenesis
- Ichthyosis
- Idiopathic thrombocytopenia purpura
- Ileus
- Iliotibial band syndrome
- Illness-related jaundice
- Impetigo
- Impingement syndrome
- Impulsivity
- Inborn error of metabolism
- Indigestion
- Infant jaundice
- Infarction
- Infectious mononucleosis
- Infertility
- Inflammation
- Inflammatory bowel disease
- Inflammatory breast cancer
- Influenza
- Ingrown hair
- Inguinal hernia
- Insect bites
- Insomnia
- Insulin resistance
- Intellectual disability
- Internal bleeding
- Interstitial cystitis
- Interstitial lung disease
- Intertrigo
- Intracranial aneurysm
- Intrauterine growth restriction
- Intussusception
- Inverted nipple
- Iodine deficiency
- Iron deficiency
- Iron deficiency anemia
- Iron overload
- Irregular menstruation
- Irritability
- Irritable bowel syndrome
- Irritant diaper dermatitis
- Ischemia
- Itchy anus
-
L
- Labyrinthitis
- Lactic acidosis
- Lactose intolerance
- Laryngitis
- Lazy eye
- Lead poisoning
- Learning disability
- Left bundle branch block
- Left ventricular hypertrophy
- Leg pain
- Leiomyoma
- Leishmaniasis
- Leprosy
- Leptospirosis
- Lesion
- Lethargy
- Leukemia
- Leukocytosis
- Leukopenia
- Leukoplakia
- Leukorrhea
- Lichen sclerosus
- Lightheadedness
- Limp
- Lipoma
- Listeriosis
- Liver cancer
- Liver failure
- Liver hemangioma
- Liver pain
- Liver spot
- Loneliness
- Long QT syndrome
- Lordosis
- Loss of consciousness
- Loss of smell
- Low back pain
- Lower GI bleed
- Lower gastrointestinal bleeding
- Lumbar radiculopathy
- Lumbar spinal stenosis
- Lung cancer
- Lupus erythematosus
- Lyme disease
- Lymphatic filariasis
- Lymphedema
- Lymphoma
-
M
- MERS
- Macular degeneration
- Mad cow disease
- Magnesium deficiency
- Major depression
- Malabsorption
- Malaise
- Malaria
- Malignant hyperthermia
- Malingering
- Malnutrition
- Malocclusion
- Mammary ductal carcinoma
- Mania
- Maple syrup urine disease
- Marasmus
- Marfan syndrome
- Mastitis
- Mastocytosis
- Mastoiditis
- Measles
- Melancholia
- Melanocytic nevus
- Melanoma
- Melasma
- Melena
- Meniere's disease
- Meningioma
- Meningitis
- Meningococcal disease
- Meningoencephalitis
- Menopause
- Menorrhagia
- Menstrual disorder
- Mental confusion
- Meralgia paraesthetica
- Mesothelioma
- Metabolic acidosis
- Metabolic alkalosis
- Metabolic syndrome
- Metatarsalgia
- Metatarsophalangeal joint sprain
- Metrorrhagia
- Micropenis
- Middle back pain
- Migraine
- Milia
- Miliaria
- Miosis
- Miscarriage
- Misophonia
- Mitochondrial disease
- Mitral valve prolapse
- Mitral valve regurgitation
- Molar pregnancy
- Moles
- Molluscum contagiosum
- Mongolian spot
- Mood swing
- Morgellons
- Morning sickness
- Morton's neuroma
- Motion sickness
- Mouth ulcer
- Multiple myeloma
- Multiple sclerosis
- Mumps
- Munchausen syndrome
- Munchausen syndrome by proxy
- Muscle Spasms
- Muscle pain
- Muscle soreness
- Muscle weakness
- Muscular dystrophy
- Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS)
- Myasthenia gravis
- Mycosis
- Mydriasis
- Myelodysplastic syndrome
- Myelofibrosis
- Myelopathy
- Myocardial infarction
- Myocarditis
- Myoclonus
- Myofascial pain syndrome
- Myopathy
- Myopia
- Myositis
- Myotonic dystrophy
- Myxedema
-
N
- Nail clubbing
- Narcissism
- Narcissistic personality disorder
- Narcolepsy
- Nasal congestion
- Nasal polyps
- Nasal septum deviation
- Nasopharyngeal carcinoma
- Nausea
- Neck pain
- Necrosis
- Necrotizing fasciitis
- Needlestick injury
- Neonatal acne
- Neonatal jaundice
- Neonatal respiratory distress syndrome (NRDS)
- Neonatal tetanus
- Nephritis
- Nephrogenic diabetes insipidus
- Nephrotic syndrome
- Nerve compression syndrome
- Nerve injury
- Neuralgia
- Neuralgia
- Neuroblastoma
- Neurodegeneration
- Neuroendocrine tumor
- Neurofibromatosis
- Neurogenic bladder dysfunction
- Neuroleptic malignant syndrome
- Neuromuscular disease
- Neuromyelitis optica
- Neuropathic arthropathy
- Neutropenia
- Nicotine withdrawal
- Night Sweats
- Night terror
- Nightmares
- Nipple fissure
- Nocturia
- Nocturnal enuresis
- Nodule
- Non-Hodgkin lymphoma
- Non-small cell lung cancer
- Nonalcoholic fatty liver disease
- Noonan syndrome
- Nosebleed
- Nummular dermatitis
- Nutrition disorder
- Nystagmus
-
O
- Obesity
- Obsessive-compulsive disorder
- Obstructive sleep apnea
- Occipital neuralgia
- Odynophagia
- Olecranon bursitis
- Oliguria
- Onchocerciasis
- Onychocryptosis
- Onychomycosis
- Opportunistic infection
- Oppositional defiant disorder
- Optic neuritis
- Oral cancer
- Oral candidiasis
- Oral mucocele
- Orchitis
- Orthopnea
- Orthostatic hypotension
- Osgood-Schlatter disease
- Ossification
- Osteoarthritis
- Osteogenesis imperfecta
- Osteomyelitis
- Osteoporosis
- Osteosarcoma
- Otitis
- Otitis externa
- Otitis media
- Ovarian cancer
- Ovarian cyst
- Ovarian hyperstimulation syndrome
- Overactive bladder
- Overweight
- Ovulation pain
- Oxidative stress
-
P
- Paget's disease of bone
- Paget's disease of the breast
- Pain
- Painful bladder syndrome
- Pallor
- Palpitations
- Pancreatic cancer
- Pancreatitis
- Pancytopenia
- Panic
- Panic attack
- Panic disorder
- Papillary thyroid cancer
- Papule
- Paralysis
- Paraneoplastic syndrome
- Paranoia
- Paraphilia
- Paraplegia
- Paresis
- Paresthesia
- Parkinson's disease
- Paronychia
- Parotitis
- Passive-aggressive behavior
- Patau syndrome
- Patellar tendinitis
- Patellofemoral pain syndrome
- Patent ductus arteriosus
- Pathological laughter and crying
- Pathological lying
- Pectus carinatum
- Pectus excavatum
- Pelvic inflammatory disease
- Pelvic pain
- Penile cancer
- Penile fracture
- Peptic ulcer
- Perforated eardrum
- Perianal abscess
- Pericardial effusion
- Pericarditis
- Periodontal disease
- Periodontitis
- Perioral dermatitis
- Periorbital dark circles
- Periorbital puffiness
- Peripheral neuropathy
- Peripheral vascular disease
- Peritonitis
- Pernicious anemia
- Persistent vegetative state
- Perspiration
- Pertussis
- Pervasive developmental disorder
- Pes cavus
- Petechiae
- Petit mal seizure
- Peyronie's disease
- Pharyngitis
- Phenylketonuria
- Pheochromocytoma
- Phimosis
- Phlebitis
- Phlegm
- Photodermatitis
- Physical abuse
- Pica
- Pilonidal cyst
- Pimple
- Pimple
- Piriformis syndrome
- Pituitary adenoma
- Pityriasis rosea
- Placenta previa
- Placental abruption
- Plagiocephaly
- Plantar fasciitis
- Plantar wart
- Plaque
- Pleural effusion
- Pleurisy
- Pneumocystis pneumonia
- Pneumonia
- Pneumonitis
- Pneumothorax
- Poliomyelitis
- Polycystic kidney disease
- Polycystic ovary syndrome
- Polycythemia
- Polycythemia vera
- Polydactyly
- Polydipsia
- Polyhydramnios
- Polymyalgia rheumatica
- Polyp
- Polyphagia
- Polyuria
- Porphyria
- Portal hypertension
- Post-concussion syndrome
- Postherpetic neuralgia
- Postnasal drip
- Postpartum depression
- Postpartum hemorrhage
- Posttraumatic stress disorder
- Postural orthostatic tachycardia syndrome
- Prader-Willi syndrome
- Pre-eclampsia
- Precocious puberty
- Prediabetes
- Premature ejaculation
- Premature menopause
- Premature ventricular contraction
- Premenstrual dysphoric disorder
- Premenstrual syndrome
- Pressure ulcer
- Preterm birth
- Priapism
- Primary ovarian insufficiency
- Proctitis
- Progeria
- Progressive supranuclear palsy
- Prolactinoma
- Prolapse
- Prostate cancer
- Prostatitis
- Protein in urine
- Pruritic urticarial papules and plaques of pregnancy
- Pruritus
- Pseudogout
- Pseudotumor cerebri
- Psoriasis
- Psoriatic arthritis
- Psychopathy
- Psychosis
- Pterygium
- Ptosis
- Pubic lice
- Pulmonary aspiration
- Pulmonary edema
- Pulmonary embolism
- Pulmonary hypertension
- Purpura
- Purpuric fever
- Pus
- Pyelonephritis
- Pyloric stenosis
-
R
- Rabies
- Radiculopathy
- Raynaud's phenomenon
- Razor bumps
- Reactive arthritis
- Rectal discharge
- Rectal prolapse
- Rectocele
- Red eye
- Regurgitation
- Renal cell carcinoma
- Renal colic
- Renal failure
- Repetitive strain injury
- Respiratory acidosis
- Restless legs syndrome
- Restrictive lung disease
- Retinal detachment
- Retinitis pigmentosa
- Retinoblastoma
- Rett syndrome
- Reye's syndrome
- Rhabdomyolysis
- Rhabdomyosarcoma
- Rheumatic fever
- Rheumatoid arthritis
- Rhinitis
- Rib fracture
- Rickets
- Right bundle branch block
- Ringworm
- Rocky Mountain spotted fever
- Rosacea
- Roseola
- Rotator cuff tear
- Rotator cuff tendinitis
- Rotavirus
- Rubella
- Rumination syndrome
- Runny nose
-
S
- SLAP tear
- SSRI discontinuation syndrome
- Sacroiliitis
- Sadness
- Salmonella infection
- Sarcoidosis
- Sarcoma
- Scabies
- Scanty or infrequent menstruation
- Scaphoid fracture
- Scar
- Scarlet fever
- Schistosomiasis
- Schizoaffective disorder
- Schizoid personality disorder
- Schizophrenia
- Schwannomas
- Sciatica
- Scleroderma
- Sclerosis
- Scoliosis
- Scorpion sting
- Scurvy
- Seasickness
- Seasonal affective disorder
- Sebaceous cyst
- Seborrheic dermatitis
- Seborrheic keratosis
- Second trimester pregnancy
- Seizure
- Selective mutism
- Self-harm
- Sensorineural hearing loss
- Separation anxiety
- Sepsis
- Septic shock
- Seroma
- Serotonin syndrome
- Severe acute respiratory syndrome
- Severe combined immunodeficiency
- Sexual assault
- Sexual dysfunction
- Shaken baby syndrome
- Shin splints
- Shivering
- Shock
- Shoulder pain
- Sick sinus syndrome
- Sickle cell anemia
- Sickle cell trait
- Sinusitis
- Sjogren's syndrome
- Skin cancer
- Skin infections
- Skin lesion
- Skin rash
- Skin tag
- Sleep apnea
- Sleep apnea
- Sleep deprivation
- Sleep paralysis
- Sleepwalking
- Small intestinal bacterial overgrowth
- Small-cell carcinoma
- Smallpox
- Snakebite
- Sneeze
- Snoring
- Social anxiety disorder
- Sociopathy
- Soft-tissue sarcoma
- Soil-transmitted helminthiasis
- Somatic symptom disorder
- Somnolence
- Sore throat
- Spasticity
- Spider bite
- Spinal compression fracture
- Spinal cord injury
- Spinal disk herniation
- Spinal stenosis
- Splenomegaly
- Spondylitis
- Spondyloarthropathy
- Spondylolisthesis
- Spondylosis
- Spotted fever
- Sprain
- Sprained ankle
- Sprained thumb
- Sputum
- Squamous cell carcinoma of the skin
- Stage fright
- Staph infection
- Staphylococcal infection
- Starvation
- Steatorrhea
- Stenosis
- Stenosis
- Stevens-Johnson syndrome
- Stiff neck
- Stiff person syndrome
- Stiffness
- Stomach cancer
- Stomatitis
- Strabismus
- Strain
- Streptococcal pharyngitis
- Stress fracture
- Stretch marks
- Stridor
- Stroke
- Stuttering
- Sty
- Subarachnoid hemorrhage
- Subdural hematoma
- Substance abuse
- Suicidal ideation
- Sunburn
- Supraventricular tachycardia
- Swelling
- Swine influenza
- Swollen feet
- Swollen lymph nodes
- Syncope
- Syndrome of inappropriate antidiuretic hormone secretion
- Synovitis
- Syphilis
- Syringomyelia
- Systemic lupus erythematosus
-
T
- Tachycardia
- Tachypnea
- Taeniasis
- Takotsubo cardiomyopathy
- Tapeworm
- Tardive dyskinesia
- Tay-Sachs disease
- Tear of meniscus
- Telangiectasia
- Telogen effluvium
- Temporal arteritis
- Temporomandibular joint dysfunction
- Tendinitis
- Tendinosis
- Tennis elbow
- Tenosynovitis
- Tension headache
- Teratoma
- Testicular cancer
- Testicular pain
- Testicular torsion
- Tetanus
- Tetralogy of Fallot
- Thalassemia
- Third trimester pregnancy
- Thirst
- Thoracic outlet syndrome
- Thromboangiitis obliterans
- Thrombocytopenia
- Thrombocytosis
- Thrombophilia
- Thrombophlebitis
- Thrombosis
- Thrombus
- Thyroid cancer
- Thyroid disease
- Thyroid nodule
- Tic
- Tick-borne disease
- Tinea capitis
- Tinea cruris
- Tinea pedis
- Tinea versicolor
- Tinnitus
- Tonic-clonic seizure
- Tonsillitis
- Tonsillolith
- Tooth impaction
- Toothache
- Torticollis
- Tourette syndrome
- Toxic shock syndrome
- Toxoplasmosis
- Trachoma
- Transient ischemic attack
- Transplant rejection
- Traumatic brain injury
- Treacher Collins syndrome
- Tree nut allergy
- Tremor
- Trichinosis
- Trichomoniasis
- Trichotillomania
- Trigeminal neuralgia
- Trigger finger
- Trisomy
- Trochanteric bursitis
- Tuberculosis
- Tuberous sclerosis
- Turner syndrome
- Type 1 diabetes
- Type 2 diabetes
- Typhoid fever
- Typhus
-
V
- Vaginal bleeding
- Vaginal cancer
- Vaginal discharge
- Vaginal flatulence
- Vaginitis
- Valley fever
- Varicocele
- Varicose veins
- Vascular dementia
- Vasculitis
- Vasodilation
- Vasovagal syncope
- Vasovagal syncope
- Venous thrombosis
- Venous ulcer
- Ventricular fibrillation
- Ventricular septal defect
- Ventricular tachycardia
- Vertigo
- Vestibular schwannoma
- Viral hemorrhagic fever
- Viral meningitis
- Visceral leishmaniasis
- Visual acuity
- Vitamin A deficiency
- Vitamin B-12 deficiency
- Vitiligo
- Volvulus
- Vomiting
- Von Willebrand disease
- Vulvar cancer
- Vulvodynia
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