Prophylactic mastectomy is a good option for patients who are at high risk of developing breast cancer. In certain situations, prophylactic mastectomy can reduce the risk of developing breast cancer by 90%-95%. For patients choosing to have breast reconstruction after a prophylactic mastectomy, the best cosmetic results are achieved when the reconstruction is performed at the same time as the mastectomies (“immediate reconstruction”) as demonstrated in the before and after photos below.