Treatment: Depending on whether the fracture is displaced and repositioned, the corresponding treatment measures are selected as appropriate. For fractures without displacement, the affected limb should be fixed in a calf cast or short boot cast for 4-6 weeks after injury or reset. Fractures with displacement (1) Metatarsal head plantarflexion displacement is feasible in open repositioning, if the local insertion is stable, it is only supplemented by external fixation in plaster; if the fracture is still unstable after alignment, it is necessary to cross-fix it with a Kirschner pin and remove it after 7-10 days, and then replace it with a calf cast for braking. (2) Metatarsal stem 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) Fractures of the base of the 5th metatarsal only rarely require an incision and internal fixation (small screws or kerf pins, etc.), and postoperative braking with a cast is still required. (4) Stress fractures with mild symptoms can be fixed with elastic bandages and appropriate rest for 3-4 weeks, while those with significant fracture lines require plaster fixation.