The top of the foot grows a hard bag like a bone, generally speaking, according to the specific situation, different treatment methods can be taken. First, for children and elderly patients, most often seen in the foot of the bone tumor caused by the foot protruding mass. At this time, patients need to improve the X-ray or CT examination of the foot as soon as possible to make clear the invasion level of the tumor, perform complete resection of the tumor as soon as possible, and carry out radiotherapy locally, combined with systemic chemotherapy, to kill the remaining cancer cells in the body as far as possible and prolong the life of patients. Second, tendon sheath cyst, tendon sheath cyst is a pathological change that occurs due to repeated friction at the joint tendon sheath, because the surface of the cyst is accompanied by a large number of fibrous tissue hyperplasia, so the texture is obviously harder. For small tendon sheath cysts, if there is no obvious pain and pressure symptoms, it can be closely observed and does not require special treatment for the time being. If accompanied by a larger tendon sheath cyst, affecting the patient’s normal activities, it is recommended that the patient be surgically removed to avoid serious complications.