The time to remove the nail from a femoral neck fracture is 1-2 years after the surgery and it is clear that the fracture has completely healed and there is no femoral necrosis. Because femoral neck fractures are characterized by significant misaligned fractures or subtrochanteric fractures, the chances of fracture non-union and femoral head necrosis are very high. In this case, a second total hip replacement surgery is required, and the nail needs to be removed. Only if the fracture heals gradually and there is no necrosis of the femoral head after regular radiographic review is the recovery considered normal and the nail needs to be removed. Therefore, it is important not to drink alcohol, not to use hormonal drugs, and not to walk on the ground prematurely until the radiographs show a full recovery. This is because the above factors are by far the most common contributing factors to femoral head necrosis or non-union of the fracture after femoral neck fracture surgery. Although the fracture itself determines the risk of this complication, this risk will be higher with the above mentioned causes present.