Patients with fractures will experience certain pain symptoms during rehabilitation exercises, and the specific pain level may not be the same for each person, mainly because the pain threshold is different for each person, and the severity of the fracture is also different, and there is a big difference in the pain during functional rehabilitation exercises. The pain level of fracture rehabilitation exercise is around 4-5, and in some patients with more serious adhesions, the functional exercise pain will reach 6. In the rehabilitation process, the main purpose is to allow the adhesions and soft tissues to move and restore the normal range of motion of the joint. The more severe the fracture and the more severe the surrounding soft tissue damage, the more pronounced the pain will be, even as much as the pain that occurs at the time of the fracture. If the fracture is not severe and the soft tissue damage is not severe, functional rehabilitation exercises can be performed early enough, and the pain will be much less severe, even if there is no significant pain. Reasonable functional rehabilitation exercise is also a factor, we should follow the principle of gradual progress, not overnight, forcing to restore the function at once, the pain will be more serious.