C genetic counselor
Women who have the brca2 mutation have an increased risk of developing breast(50-80%) and/or ovarian(15-25%) ca, as well as other GI malignancies.
is one of a number of options to reduce this risk, as is close surveillance (mammograms, breast mri
), and chemoprevention (tamoxifen
, etc). The best advice is tailored to your specific condition--see a genetic counselor first.