Avulsion fracture of the left heel bone can be treated conservatively with immobilization if the symptoms are mild, and should be treated with surgery if the symptoms are serious. 1. Conservative treatment: avulsion fracture is a special type of fracture, which is caused by rapid or violent muscle pulling, resulting in tendon or ligament attached to the bone fracture, for the fracture is small and does not affect the joint activities, the symptoms of the less serious people can choose the conservative treatment, the use of plaster or splints for immobilization, restriction of activities for recovery. Oral non-steroidal anti-inflammatory drugs such as celecoxib to reduce inflammation and pain. 2. Surgery: If the fracture is large and the fracture has affected the joint surface, which affects the normal work and activities, surgery should be performed to reset and immobilize the fracture. Avoid weight bearing, prevent falling to avoid secondary injury, and carry out rehabilitation training as early as possible to promote the recovery of the fracture and prevent stiffness of the joints.