What is endometriosis?
If you suffer from endometriosis, you have tissue of the same type as the endometrium outside the uterus, for example in the ovaries, in the fallopian tubes, on the bands that keep the uterus in place, in the bladder, in the intestines, in the area between the vagina and the rectum or, more rarely, in the peritoneum. Every month, this tissue reacts to the sex hormones in the same ways as the endometrium. This means that the tissue grows in line with the change in the sex hormones, and the tissue outside the uterus also bleeds when you have your menstrual period.
Unlike menstrual blood, endometrial bleeding cannot flow out, and inflammation of the tissue may occur. Over time, scar tissue may also be formed, which can damage the ovaries due to cyst formation and block the fallopian tubes. These tissue changes make it difficult to get pregnant.