The answer is no. First, let's explain what endometriosis is. Endometriosis is when the endometrium, or the lining of the uterus, is found outside of its normal location, including in the muscular layer of the uterus, the ovaries, the pelvic cavity, or the intestines; it can occur in any of these areas. This condition is known as endometriosis. Endometriosis within the uterus is a benign condition, but it can lead to severe painful menstruation and chocolate cysts. If the menstrual pain is very severe, there may be a possibility of needing a hysterectomy in the future. If a chocolate cyst occurs, surgery might also be necessary.