- Hiccups
- High-Risk Pregnancy
- Hirschsprung's Disease
- Hirsutism
- Histiocytosis X
- Histoplasmosis
- Hives
- Hodgkin's Disease
- Holistic Medicine
- Holter Monitoring
- Holtzman Ink Blot Test
- Homeopathic Medicine, Acute Prescribing
- Homeopathic Medicine, Constitutional Prescribing
- Homeopathy
- Hookworm Disease
- Hormone Replacement Therapy
- Hospital-Acquired Infections
- Human Bite Infections
- Human Chorionic Gonadotropin Pregnancy Test
- Human Leukocyte Antigen Test
- Human-Potential Movement
- Huntington Disease
- Hydatidiform Mole
- Hydrocelectomy
- Hydrocephalus
- Hydronephrosis
- Hydrotherapy
- Hyperaldosteronism
- Hypercalcemia
- Hypercholesterolemia
