BRCA1 and BRCA2 are two genes that are important to fighting cancer. They are tumor suppressor genes. When they work normally, these genes help keep breast, ovarian, and other types of cells from growing and dividing too rapidly or in an uncontrolled way.
Sometimes a change or mutation occurs in the BRCA genes that prevent them from working normally. This raises a person’s risk for breast, ovarian and other cancers. Learn more about BRCA gene mutations.