There are several local factors that may affect fracture healing: 1. diet, after the fracture, you need to eat high protein, high calcium, vitamin-rich food, if you eat spicy and stimulating or drink coffee, carbonated drinks, etc. may stimulate the fracture end, which is not conducive to fracture healing. 2. slow growth of bone scab, bone scab is extremely important for fracture healing. But if the scab growth is slow, it will directly affect the fracture healing. The fracture is not only a result of the fracture, but also a result of the fracture’s healing process. 3, blood circulation, blood circulation is also very important for fracture healing, and also related to functional recovery. Therefore, it is necessary to move the fingers or toes of the affected limb after the fracture to promote blood circulation, promote the recovery of fracture function, and also prevent muscle wasting atrophy, and also determine the end blood circulation.