NCCN Cancer Centers
| The National Comprehensive Cancer Network (NCCN) is a not-for-profit alliance of 23 of the world’s leading cancer centers. We are dedicated to improving the quality and effectiveness of care provided to people with cancer. |
Glossary of terms used on this site
| Term | Definition |
|---|---|
| Estrogen |
A type of hormone made by the body that helps develop and maintain female sex characteristics and the growth of long bones. Estrogens can also be made in the laboratory. They may be used as a type of birth control and to treat symptoms of menopause, menstrual disorders, osteoporosis, and other conditions. |

