She then describes the major surgery two weeks later where breast tissue was removed, saying it felt "like a scene out of a science-fiction film, " then writes that nine weeks later she had a third surgery to reconstruct the breasts and receive implants.

WSJ: Angelina Jolie says she had double mastectomy

"The dilemma we're facing is more and more women are choosing to remove both breasts, " said Dr. Michael Sabel, associate professor of surgery at the University of Michigan Medical School, in a statement announcing the findings.

CNN: Why more women are choosing double mastectomies