Genetic Testing for Breast Cancer and Radical Mastectomy—Are Women Being Misled into a False Sense of Security?

A key point for women to remember is that while women with BRCA defects have a 45-65 percent increased risk of breast cancer, only about TWO PERCENT of diagnosed breast cancers are caused by BRCA faults. So this genetic defect is nowhere close to being a primary cause of breast cancer. Clearly, other non-genetic factors play a far more significant role.

Most Women who have Double Mastectomy Don’t Need It

Recent studies have shown an increase in women with breast cancer choosing this more aggressive surgery, called contralateral prophylactic mastectomy, which raises the question of potential overtreatment among these patients. The study found that 90 percent of women who had surgery to remove both breasts reported being very worried about the cancer recurring. But, a diagnosis of breast cancer in one breast does not increase the likelihood of breast cancer recurring in the other breast for most women.