How long it takes to straighten the humerus after a fracture depends on the specific fracture site. If it is the humeral stem, passive activities are performed early, and passive straightening or passive flexion can be performed in 3-4 days after the operation. In addition, if the fracture is of the humeral condyle, it may straighten a little later due to the proximity of the fracture to the joint, but it can be fully straightened in 7-10 days after a series of functional exercises. Fractures of the proximal humerus and those involving the shoulder joint are likely to be less affected by the process of straightening, and basically take about the same time to straighten as humeral condyle fractures, which can be properly straightened in 7-10 days. In the case of a fracture of the end of the humerus or a fracture involving the elbow joint, it is possible that straightening will occur slightly later.