Can I prevent cancer by having my ovaries and fallopian tubes removed?

The answer to this question primarily is yes.  However, when both ovaries and tubes are removed, there is a very small chance of developing a cancer in the lining of the tissue surrounding the ovaries and tubes called the peritoneum, and the cancer is called primary peritoneal cancer (PPC). However, there is some controversy as to whether PPC develops on its own or whether there is a very early-stage cancer at the time the ovaries and tubes are removed that is missed, and hence, it looks like a PPC.