After the fracture has formed a bone scab, there is basically no displacement of the broken end of the fracture without strenuous exercise. However, it is not recommended to exert too much force too soon before the bone scab is fully formed, so as to avoid recurrence of fracture. 1. Fracture healing is a chronic process, the formation of bone scab is the process of fracture healing, about a month to start forming bone scab. However, it is not that the fracture is very stable just after the formation of the bone scab, it needs the bone scab to grow completely and the fracture line disappears before the fracture can reach the standard of fracture healing, the more bone scabs are formed, the more stable the fracture is, and the less likely to be dislocated. 2. Before the bone scab is fully formed, a lot of early activities and excessive force, more than the range of the scab can withstand, will still be dislocated again, clinically known as recurrent fracture. Therefore, it is not recommended to exert too much force too early to prevent dislocation before the bone scab is fully formed. Fracture patients are advised to pay more attention to the relevant care, even if there is a bone scab formation should not be taken lightly, need to assess the healing situation under the guidance of the doctor.