Fig. 2

Migrated IUD was removed by laparoscopy in a typical case of uterine perforation. a A 36-year-old patient was visiting the 3rd Xiangya Hospital for checking of hysteromyoma in January 2015, and this patient was experienced with two types of IUD insertions, and because of that, she assumed that the first IUD was expelled. However, after she took out the second IUD, another IUD was monitored unexpectedly by computed tomography (CT), indicating that the first IUD had undergone uterine perforation. Note that the red arrow showed the IUD. b–f The laparoscopy was applied for the removal of the migrated IUD. It was shown that the IUD completely perforated through the uterine serosa and invaded into the sigmoid colon and, finally, the IUD was removed and the wounds were sewn under laparoscopy. Note that the migrated IUD was shown in yellow arrows, and the perforation site at the uterus and the invaded site of the sigmoid colon were shown in blue arrows. e The IUD was identified as a V-shaped copper IUD, and the string was already separated from the IUD body