After the humerus fracture, the affected limb should sleep on its side or in the supine position, so as not to press the affected area. After the fracture, especially after internal fixation, functional exercises should be performed, such as making a fist, flexing and extending the elbow joint, flexing and extending the wrist joint, and shrugging the shoulder to increase blood circulation. 3-4 weeks, depending on the growth of the bone scab, small movements of the shoulder joint can be done appropriately. In about 6 weeks, the fracture can be removed from the splint or cast, with Chinese herbal fumigation, and gradually increase the movement of the shoulder joint until recovery. Generally, you should not bear weight or lift anything within 3 months to avoid re-fracture or displacement of the fracture.