After a traumatic car accident, first, assess the patient’s status and whether there is any loss of consciousness. If the patient is still conscious, monitor the patient’s vital signs, blood pressure, heart rate, respiration, pulse, etc. If all signs are normal, it is necessary to see if there are any positive signs throughout the patient’s body and give a systematic examination. Whether there are any positive signs in the abdomen, whether there is any internal bleeding, whether the bilateral breath sounds are normal, whether there are fractures or skin trauma to the limbs. If there is skin trauma, compression bandages need to be given. If there is an obvious fracture, such as a long bone deformity, it needs to be splinted or braced and then sent to the hospital for treatment. Therefore, the principle of car accident injuries is to save life first, then restore function.