A fall can be determined by clinical signs and imaging under the guidance of a physician to determine whether there is a bone injury. 1. Clinical signs: The proprietary signs of fracture include localized fracture, deformity such as angular deformity or shortening deformity, abnormal movement of the fracture site, bone rubbing sound or bone rubbing sensation, etc. The presence of any one of the above signs indicates that a fracture may have occurred. 2. Imaging: X-rays should be performed in a timely manner after a fall. If a fracture occurs, there will be a break in the continuity of the bone, fracture lines, etc. It is recommended to go to the hospital at the first sign of injury. It is recommended to go to the hospital at the first time of injury, avoid moving the affected area to cause secondary injuries during the movement process, conduct imaging and other examinations, and under the guidance of the doctor for treatment.