Ha
Hair loss
Hair-pulling disorder
Hairy cell leukemia
Hairy tongue
Halitosis
See
Bad breath
Hammertoe and mallet toe
Hamstring injury
Hand fracture
See
Broken hand
Hand-foot-and-mouth disease
Hangovers
Hantavirus pulmonary syndrome
Hardening of the arteries
Hashimoto's disease
HAV infection
See
Hepatitis A
Hay fever
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He
Head and neck cancers
Head lice
Head trauma, coma
See
Coma
Headache, chronic daily
Headache, cluster
Headache, exercise
Headache, migraine
See
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
Hemangioma
Hemangioma, liver
Hematoma, intracranial
Hematuria
Hemifacial spasm
Hemochromatosis
Hemolytic uremic syndrome (HUS)
Hemophilia
Hemorrhoids
Henoch-Schonlein purpura
Hep A
See
Hepatitis A
Hep B
See
Hepatitis B
Hep C
See
Hepatitis C
Hepatitis A
Hepatitis A virus infection
See
Hepatitis A
Hepatitis B
Hepatitis B virus infection
See
Hepatitis B
Hepatitis C
Hepatitis C virus infection
See
Hepatitis C
Hepatitis, autoimmune
Hepatitis, toxic
Hepatocellular carcinoma
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
See
Shingles
Herpes zoster oticus
Herpes, genital
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Hi
Hiatal hernia
Hiccups
Hidradenitis suppurativa
High blood pressure (hypertension)
High blood pressure in children
High blood pressure, secondary
High cholesterol
High-flow priapism
See
Priapism
Hilar cholangiocarcinoma
Hip dysplasia
Hip fracture
Hip labral tear
Hirschsprung's disease
Hirsutism
Histoplasmosis
HIV/AIDS
Hives and angioedema
Hives, chronic
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Ho
Hoarding disorder
Hoarse voice
See
Laryngitis
Hodgkin's disease
Hodgkin's lymphoma (Hodgkin's disease)
Hordeolum
See
Stye (sty)
Horner syndrome
Horner-Bernard syndrome
Hot flashes
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Hu
Human immunodeficiency virus
See
HIV/AIDS
Human papillomavirus infection
Hunchback
See
Kyphosis
Huntington's disease
Hunt's syndrome
Hurthle cell cancer
Hutchinson-Gilford progeria syndrome
See
Progeria
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Hy
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
See
Preeclampsia
Hypertension, pulmonary
Hyperthyroidism (overactive thyroid)
Hypertrophic cardiomyopathy
Hypoactive sexual desire disorder
Hypochondria
Hypoglycemia
Hypoglycemia, diabetic
Hypohydration
See
Dehydration
Hyponatremia
Hypoparathyroidism
Hypopituitarism
Hypoplastic left heart syndrome
Hypospadias
Hypotension
Hypothermia
Hypothyroidism (underactive thyroid)
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