What is the cause of endometriosis?
There are several theories, none of which have been proven. However, research has shown that many women with endometriosis appear to have a defect in their immune system. Other causative factors may be: Retrograde menstruation or the spillage of menstrual blood into the pelvis through open fallopian tubes; Transplantation theory or the movement of endometrial cells throughout the pelvis (and even outside of the pelvis) through blood and lymphatic systems; and Coelomic metaplasia or the ability of certain cells to change into endometrial cells. Heredity is also said to be a factor in endometriosis. Some believe that endometriosis may actually be caused by “a combination of several factors.
