To clinically determine whether a foot is fractured or not, the three main characteristics of a fracture are: first, deformity; second, bone rubbing sound and bone rubbing sensation; and third, abnormal activity which can also be called abnormal activity. If the foot is injured and there is swelling and pain but still can barely walk, it is mainly considered to be caused by soft tissue contusion. If the foot is injured and there is swelling and pain and limited movement, and abnormal activity of the foot can be touched, or the deformity of the part can be obviously felt, it means that it is a fracture, and this fracture can be considered to have displacement of the fracture. In the case of a fracture, no abnormal movement can be palpated and no deformity can be seen, so it is clinically difficult to determine. Therefore, if the foot is injured and there is swelling, pain or limited movement, it is recommended to apply brakes and go to the hospital for X-ray examination in time to prevent secondary injury.