Statistics suggest between six and ten percent of women have endometriosis, a condition where cells similar to those found on the uterine wall grow outside of the uterus, including in the ovaries. Ovarian cysts that grow from endometrial tissue are called endometriomas. They can cause acute pain, and if they rupture, may lead to internal bleeding. Hormonal medications and painkillers treat endometriosis. Endometriomas require surgical removal using minimally invasive laparoscopy.

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