Medicine
- Guided imagery
- Guthrie test
- gynecology
- Hair transplantation
- Hatha yoga
- health insurance
- health maintenance organization
- health-care proxy
- hearing aid
- Heart catheterization
- Heart function tests
- Heart surgery
- Heart Transplantation
- Heart valve replacement
- heart-lung machine
- Heimlich maneuver
- Hellerwork
- Hematocrit
- hematoxylin
- hemocytometer