This is always an individual decision of a woman, and it is difficult to give an answer like "true or false." However, if an oncogenic mutation is determined, which significantly increases the absolute cumulative risk of breast cancer to 85% ... I often ask in women lectures - what would you do if you know that with such a mutation 85 out of 100 get aggressive breast cancer? About a third say they would prefer removal of the mammary glands with reconstruction by implants; accordingly, two thirds are not so sure of such a decision. It is difficult to say which of them is right: this is their life.
Actually that is truth. If, of course, we are talking about a very high risk type of cancer with an oncogenic mutation, for example, mutations in the BRCA1 / 2 genes.