You can do high potential after fracture, but you can’t do high potential with metal internal fixation. High potential can promote the growth of bone scab, the absorption of bruises, soft tissue repair, and accelerate fracture healing. It can be performed outside the plaster or splint, but it is prohibited when there is metal internal fixation. The effect of electrical stimulation on the cellular microenvironment is to reduce the oxygen tension of local tissues and increase their pH, both of which are beneficial to osteogenesis. When biological tissue is injured, there is a significant potential difference between it and normal tissue, and placing it at the site of trauma with a negative electrode aids in wound healing. Therefore, maintaining a proper charge on soft tissue injuries and fractures, both of which can cause the membrane potential to change so that the injury can be repaired. The same disease, the patient’s physical condition is different, different stages of the disease, the treatment method is different, should be standardized under the guidance of the doctor.