If you have a history of breast cancer in your family, there is the possibility that you are at a higher risk for the disease. The discovery of the BRCA-1 and BRCA-2 tumor suppressor genes in the 1990s, opened the door to testing to determine who had a mutation of those genes. If the genes cannot function properly, tumors are more likely to form causing a much greater risk for breast and ovarian cancer. The gene mutation can be passed down from either parent to children of either sex. Testing positive for the gene can mean an 80-90% chance of getting breast cancer at some point in your life. Speak with your physician if you think you are at risk and consider BRCA1/2 testing if needed.