To determine whether a fracture has occurred after a foot has been broken, the patient’s swelling and pain at the site of the broken foot, as well as auxiliary examinations such as X-rays and 3D CT can be used to determine whether the fracture has occurred. If there is obvious localized swelling, severe localized pain, and blister formation, it is likely that there is a bone fracture, or even an obvious displacement of the fracture. In addition, if there is deformation at the site of the broken foot, or if there is a bone friction sound when moving the broken foot site, or if the activity is abnormal, this is a characteristic manifestation of the fracture, suggesting that there is a fracture at the site. Some minor bone fracture can not be judged purely through the external clinical manifestations, it is necessary to pass auxiliary examination such as X-ray film, etc., and if necessary, some bone fracture also needs to pass three-dimensional CT and MRI examination in order to make a clear diagnosis, which requires a broken foot to determine whether there is a fracture or not, it is necessary to go to the hospital in time for consultation and treatment, and be clearly diagnosed by the specialist physician according to the specific clinical manifestations and auxiliary examination.