Women at high-risk of ovarian cancer because of mutations in the gene BRCA1 or BRCA2 might consider having a risk-reducing surgery called salpingo-oophorectomy to remove their ovaries and fallopian tubes before ovarian cancer has been diagnosed. Memorial Sloan-Kettering experts discuss the merits of this prophylactic operation, which has been shown to decrease a woman’s risk of breast and ovarian cancers by 75 percent.