Jolie revealed on Tuesday that she had the surgery because she carries a gene that puts her at high risk of developing breast and ovarian cancer.
A doctor at the Pink Lotus Breast Center in Beverly Hills writes on the center's website that Jolie's mother had breast cancer and died of ovarian cancer, and that her maternal grandmother also had ovarian cancer.
Jolie had three operations in all, and tests showed no sign of cancer in her breasts or lymph nodes. The last operation was on April 27, 10 weeks after her double mastectomy.
The details were released as word emerged that Jolie will have more surgery, this time to remove her ovaries. The BRCA-1 genetic mutation also significantly raises the risk of ovarian cancer.
Removing them diminishes the risk, but with more side effects than mastectomy. Those include premature menopause.