Urinary Bladder Endometriosis.

Endometriosis is characterized by the presence of endometrial tissue in the ectopic foci outside the uterus.Usual sites of its occurence are ovaries, uterine ligaments, fallopian tubes, rectum and cervico-vaginal regions. Urinary tract is a rare site of occurence and accounts for 1-2% cases.84% of cases in urinary tract occur in urinary bladder. We report a case of urinary bladder endometriosis in a 35 years old female patient who presented with cyclical pain and hematuria with a mass in right posterolateral wall of the urinary bladder.