Car accidents are likely to cause injuries in the following areas: first, chest injuries, especially rib fractures, lung injuries, etc. At the moment of the car accident, the steering wheel or airbag will directly hit the front chest wall, causing sternal and rib fractures, and even the fractured ends will pierce the pleural cavity and lungs, causing lung damage. Usually the clinical symptoms of the patient are more serious, and even hemorrhagic shock and severe pneumothorax can occur, affecting the survival of the patient. Second, hip fracture and dislocation, the moment of the car accident due to the direct impact of the seat in front, will cause the patient’s hip joint fracture and dislocation. The dislocation is more common and the patient will have shortened and rotated deformity of the lower limb and the pain is very intense.