Endometrial tissue (dark purple) inside an ovary OGphoto/Getty Images
One in 10 women live with endometriosis, but we still don鈥檛聽know its exact cause. New聽evidence suggests that some聽cases may be present from birth, and that different subtypes of the condition may benefit from聽different treatments.
Endometriosis is diagnosed when endometrial cells from the聽lining of the uterus are found聽elsewhere in the body. When people with the condition menstruate, these patches of cells,聽wherever they are, bleed.
This is thought to be at least partly responsible for the debilitating pain people with endometriosis often experience, although we…



