Intrauterine contraceptive device (IUCD) is relatively safe but still with some serious risks. Uterus perforation is rare and would be fatal. A case of Cu-7 IUCD invading into the sigmoid colon through uterine perforation caused by a pelvic blunt trauma was presented. Our case showed that uterus perforation by an IUCD could induce utero-sigmoid fistula which is likely to be missed. Imaging is required when the patients with IUCD present abdominal pain, particularly with a history of trauma.
Adult ; Colon, Sigmoid ; injuries ; Female ; Foreign-Body Migration ; complications ; Humans ; Intrauterine Devices ; adverse effects ; Uterine Perforation ; etiology ; Wounds, Nonpenetrating ; etiology