Read what the risk factors are, according to the National Cancer Institute and the American Cancer Society. Then, if you want a more in-depth evaluation, sign up for the National Cancer Institute's Breast Cancer Risk Assessment Model.
Women have a far greater risk of breast cancer than men.
The disease is about 100 times more common among women than men. Women with these inherited mutations also have an increased risk for developing cancer of the ovary. Risk is also higher among women whose close blood relatives have this disease. Blood relatives can be from either the mother's or father's side of the family. The risk of developing breast cancer increases with age.