| Topics![[file]](images/m/file.gif) H. flu infections  - H. influenzae infections
- H. pylori infections
- HACEK Infections
- Haemophilus aphrophilus
- Haemophilus ducreyi
- Haemophilus influenzae Infections
- Haemophilus parainfluenzae
- Hair loss
- Hairiness
- Hairy cell leukemia
- Hairy leukoplakia
- Halitosis
- Hand eczema
- Hand hygiene
- Hand-foot-and-mouth disease
- Hands, contracture of
- Hansen's disease (leprosy)
- Hantavirus hemorrhagic fever
- Hard of hearing
- Hashimoto's thyroiditis
- HAV
- Hay fever
- Hay, moldy, hypersensitivity pneumonitis from
- HbH disease
![[expand]](./images/m/index_expand.gif) HBV- HCC
- HCO3-
- HCV
- HDL (high-density lipoprotein)
- HDV
- Head and neck cancer
- Head injury
- Head lice
- Head pain
- Headache
- Health care screening and disease prevention
- Health care-associated pneumonia
- Health promotion
- Hearing impairment
- Hearing loss
- Heart attack
- Heart block
- Heart failure, acute
- Heart failure, chronic
- Heart Murmurs
- Heart muscle inflammation
- Heart throbbing
- Heart transplantation
- Heart valve disease
- Heartburn
- Heat exhaustion and heat stroke
- Heat stroke
- Heel pain
- Heerfordt-Waldenstrom syndrome
- Helicobacter pylori infections
- Helicobacter pylori peptic ulcer disease
- HELLP
- HELLP syndrome
- Hemangioendothelioma
- Hemangiopericytoma
- Hematemesis
- Hematochezia
- Hematocrit, decreased
- Hematogenous osteomyelitis
- Hematoma, subdural
- Hematomyelia
- Hematopoietic stem cell transplantation
- Hematuria
- Hemiparesis
- Hemochromatosis
- Hemodialysis
- Hemoglobin H disease
- Hemoglobin S disease
- Hemoglobin, decreased
- Hemolysis, ELevated liver function tests, and Low Platelets
- Hemolysis, immune
- Hemolytic anemias, acquired
- Hemolytic anemias, inherited
- Hemolytic disease of the newborn
- Hemolytic streptococcal gangrene
- Hemophilia
- Hemophilia, acquired
- Hemoptysis
- Hemorrhage, esophageal
- Hemorrhage. See also Bleeding
- Hemorrhagic fevers
- Hemorrhagic gastritis
- Hemorrhoidal disease
- Hemorrhoids
- Henoch-Schonlein purpura
- Heparin
- Heparin-induced thrombocytopenia
- Heparinoids
- Hepatic cirrhosis
- Hepatic dysfunction, tests of
- Hepatic encephalopathy
- Hepatic flukes
- Hepatic metastases
- Hepatitis A, acute
- Hepatitis B, acute
- Hepatitis B, chronic
- Hepatitis C, acute
- Hepatitis C, chronic
- Hepatitis D, acute
- Hepatitis D, chronic
- Hepatitis E, acute
- Hepatitis in pregnancy, acute or chronic
- Hepatitis, alcoholic
- Hepatitis, autoimmune
- Hepatitis, drug-induced
- Hepatoblastoma
- Hepatocellular carcinoma
- Hepatolenticular degeneration
- Hereditary angioedema
- Hereditary coproporphyria
- Hereditary elliptocytosis
- Hereditary nephritis
- Hereditary neutropenias
- Hereditary nonpolyposis colorectal cancer
- Hereditary periodic fever syndromes
- Hereditary pyropoikilocytosis
- Hereditary spherocytosis
- Hereditary stomatocytosis
- Hernia, inguinal
- Herniation of intervertebral disks during pregnancy
- Heroin
- Heroin addiction
- Herpangina
- Herpes gestationis
- Herpes simplex virus (HSV) infections
- Herpes zoster
- Herpesvirus infections
- Herpetiformis, dermatitis
- Heterophile antibody test
- Heterophyes heterophyes
- Heterosexual precocity
- HEV
- HHNK
- HHV
- Hiatal hernia
- Hib infections
- Hiccups
- HIDA
- HIDS
- High altitude cerebral edema (HACE)
- High altitude pulmonary edema (HAPE)
- High blood pressure
- High blood pressure in pregnancy
- High-density lipoprotein (HDL)
- High-output heart failure
- High-risk pregnancy, prenatal care
- Hip fracture, and osteoporosis
- Hirsutism
- Histiocytoma
- Histoplasma capsulatum infection
- Histoplasmosis
- Histrionic personality disorder
- HIV, AIDS
- HLA-B27
- Hodgkin's disease
- Homeopathic medicine
- Homeopathy
- Hookworm disease
- Hookworm infections
- Hordeolum
- Hormone resistance, thyroid
- Hospital-acquired infection
- Hospital-acquired pneumonia
- Housemaid's knee
- HPV
- HSV
- HTLV-I
- HTN
- Human bites
- Human chorionic gonadotropin, beta type, testing for free or total
- Human ehrlichiosis ewingii
- Human granulocytotropic ehrlichiosis
- Human herpesviruses types 6, 7, and 8
- Human immunodeficiency virus (HIV)
- Human metapneumovirus infections
- Human monocytotropic ehrlichiosis
- Human papilloma virus
- Human papillomavirus infections
- Human T-cell leukemia virus type I
- Huntington's disease
- Hydatid disease
- Hydrocephalus, normal pressure
- Hydroperitoneum
- Hydrops fetalis
- Hydrothorax
- Hymenolepiasis
- Hymenolepis diminuta
- Hymenolepis nana
- Hymenoptera stings
- Hyperaldosteronism
- Hyperandrogenism, amenorrhea from
- Hyperbilirubinemia
- Hyperbilrubinemia, inherited
- Hypercalcemia
- Hypercalcemia of malignancy
- Hypercalcemic nephropathy
- Hypercholesterolemia
- Hypercoagulable state
- Hypercortisolism
- Hyperemesis gravidarum
- Hypereosinophilic syndrome
- Hyperglycemic hyperosmolar state
- Hypergonadotropic hypogonadism
- Hyperhomocystinemia
- Hyperimmunoglobulinemia D with periodic fever syndrome
- Hyperkalemia
- Hyperkalemic periodic paralysis
- Hyperlipidemia
- Hypermagnesemia
- Hypernatremia
- Hyperosmia
- Hyperosmolar coma
- Hyperosmotic nonketotic coma
- Hyperparathyroidism
- Hyperphosphatemia
- Hyperplasia, endometrial
- Hyperprolactinemia
- Hyperpyrexia
- Hypersensitivity pneumonitis
- Hypersensitivity reaction
- Hypersomnia
- Hypersplenism
- Hypertension
- Hypertensive emergencies
- Hyperthermia
- Hyperthyroidism
- Hypertonic hyponatremia
- Hypertrichosis
- Hypertriglyceridemia
- Hypertrophic arthritis
- Hypertrophic cardiomyopathy
- Hyperuricemia
- Hyperventilation syndromes
- Hypnogogic hallucinations
- Hypnosis
- Hypoacusis
- Hypoadrenal shock
- Hypoalbuminemia
- Hypoaldosteronism
- Hypocalcemia
- Hypochondria
- Hypochondriasis
- Hypogeusia
- Hypoglycemia
- Hypogonadism, male
- Hypogonadotropic hypogonadism
- Hypogonadotropic hypogonadism, female
- Hypokalemia
- Hypokalemic periodic paralysis
- Hypomagnesemia
- Hyponatremia
- Hypoparathyroidism
- Hypophosphatemia
- Hypopituitarism
- Hyposmia
- Hypothermia
- Hypothyroidism
- Hypothyroidism, amiodarone-induced
- Hypoventilation
- Hypovolemic shock
- Hypoxia brain injury
- Hypoxia, acute
- Hypoxic brain damage
- Hysteria
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