Q&A: Prophylactic mastectomy for preventing breast cancer?

Some women at high risk of breast cancer are having prophylactic mastectomies. How effective is that at preventing cancer? —E. Lieberman Denver, CO 

It cuts the risk significantly, but that doesn't mean it's the right choice for everyone. Prophylactic (preventive) mastectomy—in which a woman has breast tissue removed to try to prevent getting breast cancer—lowers the risk of developing the cancer by as much as 90 percent in women at high risk. But like all surgery, it carries risks. 

Nonsurgical options that high-risk women might also discuss with their doctors include frequent checkups or taking a drug such as tamoxifen (Nolvadex and generic) to reduce breast-cancer risk.

Learn about the different surgery options for breast cancer and read more on prophylactic mastectomy (subscribers only) as a preventative measure and treatment for early breast cancer.