Intrapelvic pin migration of the Kirschner wires or the Steinman pins that are used for the treatment of hip fracture is rare, but it can be serious when it occurs. We experienced a delayed intestinal injury that was caused by the migration of an intrapelvic pin, and this happened 10 years after performing fixation for an acetabular fracture. For preventing this potential complication, the pins have to be used only as a temporary fixation and the end of the pins should be bent. Further, the patients should be followed up clinically and radiographically for a long time. If pin migration does occur, the pin should be removed.