There are some women that are at the highest risk to develop breast cancer. These women tend to have a hereditary form of breast. The most common form of hereditary breast is that which involves the BRCA mutation. BRCA stand for the BReast CAncer gene. There are two BRCA mutations that have been identified. Theses gene are named BRCA 1 and BRCA 2. Women with the BRCA 1 or 2 gene mutation have a 50 – 87% risk of developing breast cancer in their lifetime. These women also have a 20 -45% chance of developing ovarian cancer in their lifetime.