Intraunterine device (IUD) is a safe, effective and feasible method used for reversible contraception worldwide. Transvesical migration of an Intrauterine device (IUD) is a rare complication. We describe a case in whom initially a plain abdominopelvic radiography demonstrated calcified string of an IUD in a 42-year-old woman with recurrent lower urinary symptoms (LUTS) and urinary tract infection since 2 years earlier. The IUD had been inserted 12 years earlier and 3 years after placement of the IUD, the patient experienced an uneventful pregnancy and a successful delivery. Sonographic images and later on the cystoscopic procedure confirmed the diagnosis of transvesical migration of the IUD. The IUD was removed using cystoscopic procedure, leaving no complication.