Cyclical acute renal failure due to bilateral ureteral endometriosis

Endometriosis is a common disease but ureteral involvement is relatively ra re. Ureteric endometriosis is mostly unilateral. Endometriotic ureteral obs truction is a serious event commonly diagnosed late and therefore associate d with a major risk of hydronephrotic renal atrophy, We present the cyclica l acute renal failure associated with menstruation in a patient who develop ed severe bilateral ureteral obstruction due to endometriosis. Physicians s hould be aware of this uncommon but serious manifestation of endometriosis, especially if the clinical presentation is cyclical acute renal dysfunctio n in a premenopausal woman.