There are risks associated with any surgical procedure, and the same applies to fracture surgery. Fractures are mostly seen in the limbs, and the postoperative risk is relatively small compared to visceral surgery, mainly local risk, with less impact on the systemic condition. Different parts of the fracture, the different types of surgery, most of the use of internal fixation, the main risks include: 1, internal fixation failure: common causes are osteoporosis, postoperative premature weight-bearing, so the preoperative should be rigorous assessment of the degree of osteoporosis in patients, the choice of appropriate internal fixation materials, such as locking plate, osteoporosis patients, the effect of fixation is better; postoperative based on the recovery of the patient, the guidance of the time of weight-bearing; 2, intraoperative secondary Injury: such as nerve injury, blood vessel injury, wound infection, the operation should be strictly aseptic operation to minimize the injury.