Beyonce’s Father, Mathew Knowles, Diagnosed With Breast Cancer

Entertainment executive Mathew Knowles has fought off breast cancer via a mastectomy and is planning another because testing uncovered a genetic mutation with potentially life-altering ramifications for himself and his family.

Knowles said the cancer appeared in July, leading to the discovery of a mutation in one of the so-called “breast cancer genes,” specifically BRCA2.

Because Knowles has the mutation, each of his children – including his daughters Beyoncé and Solange – has a 50% chance of having it. If any females have it, their risks increase sharply for breast cancer and ovarian cancer.