A 75-year-old patient applied to the urology clinic with a cystocele and ultrasonography of urinary tract evidencing bilateral grade III hydronephrosis. She didn't complain about any urination problem. Gynecologic examination showed a marked cystocele throughout its entire extension on the anterior wall of vagina. The excretory urography confirmed the presence of bilateral hydronephrosis and 'narrowing distal ureters.' An anterior colporrhaphy and tension-free vaginal tape procedure were performed without any complication. At the third month of the follow-up, regression in hydronephrosis was observed and there was no urinary complaint. In women presenting dilatation of upper urinary tract, pelvic organ prolapses must be kept in mind and a convenient examination is the key point to rule it out. Unnoticed cases can lead to a wrong diagnosis and redundant surgery.