As the Mayo Clinic explains, genetic testing for breast cancer can determine whether a woman has a mutation in either one of the two genes that are responsible for inherited breast cancer. Genetic testing is far from definitive in determining whether or not you will actually get cancer; most breast cancers are not inherited and not all women with a mutated gene end up getting cancer. Because of this, it's important to consider the pros and cons of breast cancer testing before deciding to undergo the test.
Breast cancer is a malignant growth that begins in the breast tissue. Breast cancer is more prevalent in women, although men can get it too. After skin cancer, breast cancer is the second most diagnosed cancer in women, according to the Mayo Foundation for Medical Education and Research. If you are a woman at substantial risk because of family history, consider genetic testing.