Writing in the New York Times, Jolie said she had the surgery last week as she carries a gene that gave her a 50% risk of developing ovarian cancer.
Two years ago, Jolie, whose mother died from cancer, had a double mastectomy.
“It is not easy to make these decisions,” she said. “But it is possible to take control and tackle head-on any health issue.”
Jolie, who is married to Hollywood actor Brad Pitt, elected to have her ovaries and fallopian tubes removed after a check-up two weeks ago.
The 39-year-old had been planning the preventative surgery, but a call from the doctor prompted an emergency visit to the surgeon – the same one who had treated her mother.
“I went through what I imagine thousands of other women have felt. I told myself to stay calm, to be strong, and that I had no reason to think I wouldn’t live to see my children grow up and to meet my grandchildren,” she writes.
“I called my husband in France, who was on a plane within hours. The beautiful thing about such moments in life is that there is so much clarity. You know what you live for and what matters. It is polarizing, and it is peaceful. Husband Brad Pitt flew back from France to be with the actress.
Miss Jolie has six children with Pitt, three of them adopted. Her mother died aged 56 after fighting cancer for a decade.