Breast cancer is the most common form of cancer (other than skin) in American women and the second major cause of death after lung cancer. One out of 8 women will develop breast cancer over the course of a lifetime.
Regular breast self-exam can help you know how your breasts normally feel and look, so you can notice any changes. When you find a change, you should see your health care provider. When breast cancer is found early, you have more treatment choices and a better chance of recovery.
Increased body fat may promote breast cancer by increasing levels of certain hormones, which in turn raises circulating estrogen levels. High estrogen levels promote breast cancer, since many breast cancers are "estrogen-dependent".