If I found out my genome doubles my risk of breast cancer, should I have a preventive mastectomy?

"Having genotype for a condition does not necessarily mean that you may have it. Furthermore, the patient would have to consider that this is a major surgery and can completely change the way their body looks and feels. With such great advancements in the field of medicine, there are multiple ways to detect cancer - they can increase the frequency of their mammograms and ob-gyn appointments"