Abstract
BACKGROUND: The use of intrauterine devices (IUDs) for contraception has increased in many countries. However, their application has some serious complications such as uterine perforation and injury to adjacent organs. The translocated IUD into the bladder is a very rare occurrence. CASE PRESENTATION: Our case was a 41-year-old woman whose IUD was accidentally discovered in her bladder during a routine ultrasound. The IUD has migrated from its normal position in the uterus to the bladder. The IUD was successfully removed by cystoscopy without any complications. CONCLUSION: The mislocation of an IUD in the bladder, while uncommon, is a possibility that should be considered when the IUD string is not visible during examinations.