The common complications of fracture include infection, crural pneumonia, pressure sores, deep vein thrombosis of the lower limbs, joint stiffness, etc. Rehabilitation should be carried out in time after fracture. 1. Infection: especially for open fracture, incomplete debridement or heavy contamination may lead to infection and osteomyelitis. 2. Falling pneumonia: such as lower limb or pelvic fracture, etc., which requires long-term braking, patients with chronic diseases and the old and frail may develop falling pneumonia. 3. Pressure ulcers: For patients who need to stay in bed for a long period of time, the local tissues are under pressure for a long period of time, which may lead to the formation of pressure ulcers if not properly cared for. 4. Lower extremity deep vein thrombosis: also due to long-term fracture braking, blood circulation is impaired, which may lead to deep vein thrombosis. 5. Joint stiffness: it is a common complication of fracture and joint injury, due to long time fixation of the affected area, which will easily lead to joint mobility disorder in the later stage. After fracture, we should pay attention to reasonable rehabilitation training, ensure adequate nutrition supply, regular review and timely adjustment of the treatment program to promote the functional recovery of the body.