Are there any ways to prevent breast cancer?

Yes: Studies have shown that women at high risk for breast cancer may have a 50% reduction in breast cancer by taking tamoxifen or Raloxifene for 5 years. Furthermore, women with the hereditary predisposition to developing breast cancer (brca mutations) may prevent the development of breast cancer by undergoing a double-mastectomy.

Weight: Studies have shown that overweight individuals have a higher risk of developing multiple types of cancers including breast. Maintaining a healthy body weight is one way to help prevent cancers.