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Knowing more about different diseases and conditions will make it easier for you to ask your doctor important questions and to take a more active role in keeping you and your family healthy.

Hair Loss
Hand Surgery
Handicaps (see Disabilities)
Hansen's Disease
Happy Puppet Syndrome (see Angelman Syndrome)

Hazardous Materials (see Toxic Substance)
Hazardous Waste
Head and Neck Cancer
Head Injury
Head Lice (see Lice)

Headaches
Health Care
Health Hazard Appraisal (see Health Risk Appraisal)
Health Hazards
Health Record (see Personal Health Record)

Health Risk Appraisal
Healthy Lifestyle
Hearing Aids
Hearing Impairment
Hearing Loss (see Hearing Impairment)

Heart Attack
Heart Disease
Heart Transplant
Heartburn
Heel Pain

Heimlich Maneuver
Hemangioma
Hematology (see Blood Diseases)
Hemochromatosis
Hemodialysis (see Dialysis)

Hemophilia
Hemorrhoids
Hepatitis
Hepatitis A
Hepatitis B

Hepatitis C
Hepatitis D
Hepatitis E

Herbal Medicine
Hereditary Chorea (see Huntington's Disease)
Hereditary Diseases (see Genetic Diseases)
Heroin
Herpes

Herpes Zoster (see Shingles)
Hiatal Hernia
High Blood Pressure
Hill-Burton
Hip Replacement

Hispanic American Health
Histiocytosis
HIV
Hodgkin's Disease
Holistic Care (see Holistic Health)

Holistic Health
Holistic Medicine (see Holistic Health)
Homeopathy
Homosexuality
Hormone

Hormone Replacement Therapy
HPV
Human Immunodeficiency Virus (see HIV)
Human Papilloma Virus (see HPV)
Hunger

Huntington's Disease
Hydrocephalus
Hyperactivity
Hyperkinesis (see Hyperactivity)
Hyperopia

Hyperoxaluria
Hypertension (see High Blood Pressure)
Hyperthermia
Hyperthyroidism
Hypnosis

Hypoglycemia
Hypopigmentation (see Albinism)
Hypothermia
Hypothyroidism
Hysterectomy