HIV (human immunodeficiency virus, AIDS, acquired immune deficiency syndrome)
HPD (histrionic personality disorder, hystrionic personality disorder)
HSV-1 (oral herpes, herpes simplex)
HUS (hemolytic uremic syndrome)
Hand-Schuller-Christian Disease (histiocytosis, pulmonary histiocytosis X, histiocytosis X, eosinophilic granuloma, nonlipid reticuloendotheliosis, Langerhans histiocytoses, Letterer-Siwe Disease, pulmonary Langerhans' granulomatosis)
Hansen's disease (leprosy)
Hashimoto's thyroiditis (chronic lymphocytic thyroiditis)
Heller syndrome (childhood disintegrative disorder, disintegrative psychosis, dementia infantilis)
Hirschsprung disease (congenital aganglionic megacolon)
Hodgkin's disease (Hodgkin's lymphoma)
Hodgkin's lymphoma (Hodgkin's disease)
Hunter syndrome (mucopolysaccharidosis II, sulfo-iduronate sulfatase deficiency)
Huntington chorea (Huntington disease)
Huntington disease (Huntington chorea)
hair loss (alopecia, baldness)
hallux abducto valgus (bunions, hallux abducto valgus with metatarsus supremus varus, hallux valgus)
hallux abducto valgus with metatarsus supremus varus (bunions, hallux abducto valgus, hallux valgus)
hallux valgus (bunions, hallux abducto valgus, hallux abducto valgus with metatarsus supremus varus)
hammertoe (claw toe, mallet toe)
hand-foot-and-mouth disease (claw toe, mallet toe)
hangover (acute alcohol intoxication)
hantavirus infection (hantavirus pulmonary syndrome)
hantavirus pulmonary syndrome (hantavirus infection)
hardening of the arteries (atherosclerosis, arteriosclerosis)
hay fever (nasal allergies, allergic rhinitis, allergic rhinosinusitis)
hay fever conjunctivitis (allergic conjunctivitis, atopic conjunctivitis)
head lice and body lice (pediculosis)
headache (pediculosis)
heart attack (myocardial infarction, MI)
heart block (atrioventricular block, AV block, bundle branch block, complete heart block, first-degree heart block, second-degree heart block, third-degree heart block, cardiac conduction defect, infranodal block, intraatrial block, intraventricular block, sinoatrial block)
heart disease (cardiac disease)
heart failure (congestive heart failure, CHF, left-sided heart failure)
heart murmur (congestive heart failure, CHF, left-sided heart failure)
heartburn (gastroesophageal reflux disease, GERD, reflux esophagitis)
hematoma of the nasal septum (gastroesophageal reflux disease, GERD, reflux esophagitis)
hemochromatosis (hereditary hemochromatosis, idiopathic hemochromatosis, bronze diabetes, iron overload disease)
hemolytic uremic syndrome (HUS)
hemophilia A (congenital factor VIII deficiency)
hemophilia B (factor IX deficiency, Christmas disease)
hemorrhagic stroke (stroke, brain attack, CVA, cerebrovascular accident)
hemorrhoids (stroke, brain attack, CVA, cerebrovascular accident)
hemosiderosis (idiopathic pulmonary hemosiderosis, IPH, pulmonary hemorrhage)
hepatitis (viral hepatitis)
hepatitis A (hepatovirus infection)
hepatitis B (serum hepatitis)
hepatitis C (non-A, non-B hepatitis)
hepatitis D (hepatitis delta)
hepatitis delta (hepatitis D)
hepatocellular carcinoma (cancer of the liver, hepatoma)
hepatolenticular degeneration (Wilson's disease)
hepatoma (cancer of the liver, hepatocellular carcinoma)
hepatovirus infection (hepatitis A)
hereditary hemochromatosis (hemochromatosis, idiopathic hemochromatosis, bronze diabetes, iron overload disease)
hernia (inguinal hernia)
herniated disk (ruptured disk, slipped disk)
herpes simplex (oral herpes, HSV-1)
herpes simplex infections (fever blister, cold sore)
herpes zoster (shingles, varicella zoster)
hexosaminidase A deficiency (Tay-Sachs disease, GM2-gangliosidosis, type I)
hiatal hernia (Tay-Sachs disease, GM2-gangliosidosis, type I)
high arches (pes cavus, supinator)
high blood pressure (hypertension)
high cholesterol (hypercholesterolemia)
histiocytosis (pulmonary histiocytosis X, histiocytosis X, eosinophilic granuloma, nonlipid reticuloendotheliosis, Langerhans histiocytoses, Letterer-Siwe Disease, Hand-Schuller-Christian Disease, pulmonary Langerhans' granulomatosis)
histiocytosis X (histiocytosis, pulmonary histiocytosis X, eosinophilic granuloma, nonlipid reticuloendotheliosis, Langerhans histiocytoses, Letterer-Siwe Disease, Hand-Schuller-Christian Disease, pulmonary Langerhans' granulomatosis)
histoplasmosis (histiocytosis, pulmonary histiocytosis X, eosinophilic granuloma, nonlipid reticuloendotheliosis, Langerhans histiocytoses, Letterer-Siwe Disease, Hand-Schuller-Christian Disease, pulmonary Langerhans' granulomatosis)
histrionic personality disorder (HPD, hystrionic personality disorder)
hollow back (lordosis, swayback, saddle back)
home delivery (childbirth, emergency delivery, delivery, emergency, emergency delivery, birth, emergency)
hookworm infection (childbirth, emergency delivery, delivery, emergency, emergency delivery, birth, emergency)
hordeolum (stye, sty)
hormonal effects in newborns (normal conditions in a newborn resulting from maternal hormones)
hospital acquired pneumonia (nosocomial pneumonia)
hot tub folliculitis (nosocomial pneumonia)
human immunodeficiency virus (HIV, AIDS, acquired immune deficiency syndrome)
human papillomavirus infection in females (genital HPV, venereal wart infection)
humpback (kyphosis, roundback, hunchback, Scheuermann's disease, dowager's hump, Pott's curvature)
hunchback (kyphosis, roundback, humpback, Scheuermann's disease, dowager's hump, Pott's curvature)
hydatiform mole (molar pregnancy, trophoblastic disease, gestational trophoblastic neoplasia)
hydrocele (processus vaginalis)
hydrocephalus ex vacuo (normal pressure hydrocephalus)
hydrops fetalis (Rh incompatibility, erythroblastosis fetalis, kernicterus, Rh isoimmunization)
hyperandrogenic chronic anovulation (polycystic ovarian syndrome, Stein-Leventhal syndrome, polycystic ovarian disorder)
hyperbilirubinemia (newborn jaundice)
hypercapnia (respiratory acidosis)
hypercholesterolemia (high cholesterol)
hypercortisolism (Cushing's syndrome)
hyperemesis gravidarum (severe vomiting in pregnancy)
hypermetropia (farsightedness, hyperopia)
hypernatremia (salt imbalance, sodium imbalance, electrolyte imbalance, hyponatremia)
hyperopia (farsightedness, hypermetropia)
hyperorexia (bulimia, binging-purging, bulimia nervosa)
hyperpituitarism (acromegaly)
hyperreflexia (autonomic hyperreflexia, autonomic dysreflexia, dysreflexia)
hypertension (high blood pressure)
hypertensive retinopathy (high blood pressure)
hyperthyroidism (high blood pressure)
hypertrophic cardiomyopathy (hypertrophic obstructive cardiomyopathy, idiopathic hypertrophic subaortic stenosis)
hypertrophic obstructive cardiomyopathy (hypertrophic cardiomyopathy, idiopathic hypertrophic subaortic stenosis)
hypertrophic pyloric stenosis (pyloric stenosis, gastric outlet obstruction, congenital hypertrophic pyloric stenosis)
hyperventilation-induced alkalosis (respiratory alkalosis)
hypoactive sexual desire disorder (sexual dysfunction in women, inhibited sexual desire, lost interest in sex, diminished libido, decreased sexual desire, decreased sex drive)
hypochondria (hypochondriasis)
hypochondriasis (hypochondria)
hypocortisolism (Addison's disease, primary adrenocortical insufficiency, primary adrenal failure)
hypoglycemia (low blood sugar, low blood glucose)
hypoglycemia from medications (drug-induced hypoglycemia, medication-induced hypoglycemia)
hypogonadism (drug-induced hypoglycemia, medication-induced hypoglycemia)
hyponatremia (salt imbalance, sodium imbalance, electrolyte imbalance, hypernatremia)
hypopituitarism (pituitary gland deficiency)
hypotension (low blood pressure)
hypothalamic tumor (low blood pressure)
hypothermia (cold exposure, low body temperature)
hypothyroidism (primary hypothyroidism)
hypovolemic shock (primary hypothyroidism)
hysterical conversion (conversion disorder)
hystrionic personality disorder (histrionic personality disorder, HPD)
