< Back to Health Library

Breast cancer

Breast cancer happens when cells in your breast grow abnormally and out of control. The cancer cells can spread to other parts of your body.

You're more likely to get breast cancer as you get older.

Breast cancer can occur in anyone.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.