[Bladder endometriosis. Report of two cases and bibliographic review, with special focus on Spanish articles]

To study and review the etiopathogenic hypothesis for endometriosis and the clinical features, diagnosis and treatment of bladder endometriosis.

We report two cases and review the international bibliography, collecting the cases published by Spanish authors.

Bladder endometriosis is a rare pathological entity, but its diagnosis should be considered in fertile women with urinary tract symptoms during menstruation. Diagnosis is obtained by various imaging tests (ultrasound, CT scan, MRI), and is confirmed with cystoscopy and biopsy. The treatment may be surgical (TUR, partial cystectomy) and/or medical (hormonal).