Could endometriosis cause flank pain?

Possible. Endometriosis may be the cause of flank pain, but there are other reasons to consider as well. If pain is worse during menses makes endometriosis more likely as a cause. Do you have a diagnosis of endometriosis already? Surgery, either laparoscopy or laparotomy, is the only way to make this diagnosis for sure. Good wishes.

Related Questions

Could endometriosis cause flank pain and/or sharp shooting pains in low abdomen?

Endometriosis. Endometriosis can affect the ovary, on the uterus, the the fallopian tubes, or rarely the intestines or bladder. Although it can only be diagnosed surgically, if it is inside the ovary, you may be able to see an endometrioma with a pelvic ultrasound. The pain you describe typically occurs only with you menstrual cycles but can sometimes cause pain at other times as well. Read more...