RESUMEN
Endometriosis is one of the most important causes of chronic pelvic pain in both adolescent and adult woman. Deeply infiltrated endometriosis is tough case with poor response to medical treatment and associated with complication of visceral damage after surgical treatment. Retroperitoneal fibrosis subsequent to deeply infiltrating endometriosis lesion may encase the ureter and can present as obstructive uropathy. In such cases it is necessary and the only option to free the ureter or else the function of the affected kidney compromises. Such expensive surgeries require skill and competence with a team work in the urological surgeries. Such rare case of gross pelvic endometriosis with left obstructive uropathy was successfully managed and treated by our team.