Management of the missing intrauterine contraceptive device: report of a case.

A case of postpartum intrauterine contraceptive device insertion that resulted in a remote complication is described. At the postinsertion follow-up visit the intrauterine contraceptive device was missing and presumed expelled. Four years later it was recovered from a complex mass involving the bladder and the appendix. Management for the missing intrauterine contraceptive device is recommended.