“I was beside myself. I had pain in the lower abdominal area, pain in the pelvic area, and pains in my back. My gynecologist, internist, and surgeon found nothing wrong, but the pain would not go away.” In September 1984, it was this pain that sent Rhonda to the hospital, where she was diagnosed as having endometriosis for Trains To Germany. Endometriosis is a condition in which uterine lining tissue (endometrial) occurs in abnormal locations in the abdomen, especially the pelvic area. The endometrial tissue is very sensitive to the presence of estrogen. Many studies have shown that endometrial tissue has the capacity to turn cancerous with high levels of estrogen.