Intra-abdominal displacement of an intrauterine device (IUD) is a rare but serious complication. This is a case report of a 44-year-old woman who was referred to a surgical department with intermittent abdominal pain. Gynaecological examination and ultrasound failed to identify the patient's IUD. An abdominal CT scan confirmed the diagnosis of the intra-abdominally migrated IUD and the device was extracted by laparoscopy. Surgical removal of the migrating IUD is recommended to prevent long-term complications such as intra-abdominal adhesions, organ perforation, and fistula formation.