For fractures of the first metatarsal, the appropriate treatment is chosen according to the presence or absence of displacement and repositioning of the fracture. For fractures without displacement, if satisfactory reduction can be obtained, the affected limb should be fixed in a calf cast or short boot cast for 4 to 6 weeks after injury or reduction. 2. Fractures with displacement (1) Metatarsal head plantarflexion displacement is feasible in open repositioning, and if the local insertion is stable, it is only supplemented by external fixation in plaster; if the fracture is still unstable after the alignment, it is necessary to cross-fix it with a kerf pin, and then remove it after 7 to 10 days and replace it with a calf cast for braking. (2) Metatarsal trunk fractures generally do not require surgery for displacement, but severe dislocations, especially those affecting the arch of the foot, require incision and repositioning, followed by wire, kerf pins or screws depending on the shape of the fracture line. (3) Fracture of the base of the 1st metatarsal with dislocation only rarely requires incision and internal fixation (small screws or Kirschner pins, etc.), and postoperative braking with plaster is still required. (4) For stress fractures with mild symptoms, elastic bandage fixation and appropriate rest for 3 to 4 weeks is feasible, while plaster fixation is required for obvious fracture lines.