Rare complications of intrauterine contraception with formation of foreign bodies in the abdominal cavity and urine bladder

2 rare cases of intrauterine contraception are presented. A 53-year old female patient had been having a Lippas intrauterine contraception device (IUCD) in the abdominal cavity for 19 years before it was occasionally revealed on cholecystectomy. The next female patient who had had a T-type IUCD for 6 years developed trophic changes of the uterine wall followed by the migration and penetration of IUCD into the wall and then the urine bladder cavity. Laparotomy and cystotomy with the evacuation of the foreign body and dissection of the walls of cystouterine fistular were performed. Both patients made a complete recovery.