Women who face a very high risk of breast cancer may want to discuss drug therapy and genetic testing with their doctor. This includes women who have a history of breast disease or have a strong family history of breast cancer.

Genetic testing helps tell you whether you have inherited a gene that increases your risk of the disease. Not everyone with a flawed breast cancer gene develops cancer.

However, test results may help in making medical and lifestyle choices. For instance, a woman's doctor may recommend drug therapy or more frequent screenings if she carries an altered gene.

Drugs are now available that can help reduce breast cancer risk in high-risk women, including tamoxifen. Your doctor can help you weigh the pros and cons of taking these drugs. While they may help protect against breast cancer risk, they may increase your risk of other health problems, including stroke.