- Gallstones
- Game Theory
- Gastric and Duodenal Ulcers
- Gateway Drug Theory
- Gender and Health
- Genes
- Genetic Disorders
- Genetics and Health
- Genital Herpes
- Genitourinary Disease
- Genocide
- Geography of Disease
- Geriatrics
- Gerontology
- Gingivitis
- Global Burden of Disease
- Glycosylated Hemoglobin
- Goiter
- Goldberger, Joseph
- Gonorrhea
- Graunt, John
- Groundwater
- Groundwater Contamination
- Gulf War Syndrome
- Gun Control
