- Hand-Eye Coordination
- Hand-Foot-Mouth Disease
- Handedness
- Head Injury
- Head Start Programs
- Headache
- Hearing Impairment
- Heart Murmurs
- Heat Disorders
- Heavy Metal Poisoning
- Heimlich Maneuver
- Hemophilia
- Hemophilus Infections
- Hepatitis A
- Hepatitis B
- Hepatitis B Vaccine
- Hereditary Fructose Intolerance
- Hereditary Hemorrhagic Telangiectasia
- Hernia
- Herpes Simplex
- Hib Vaccine
- High-Risk Pregnancy
- Hirschsprung's Disease
- Histiocytosis X
- HIV Infection and AIDS
- Hives
- Home Schooling
- Homosexuality and Bisexuality
- Hospitalization
- Human Bite Infections
