The inability to make a fist after a metacarpal fracture is mainly due to the fact that the fracture site has not healed, the fracture is still unstable, and there is an obstacle to make a fist. If the metacarpal fracture does not carry out functional exercises for the hand, or if there are adhesions and contractures in the finger joints, ligaments, tendons and other tissues, resulting in stiffness of the palm and finger joints, the activities of the whole hand will be affected, for example, the inability to make a fist, or the inability to make a fist with force. It is recommended to cooperate with a specialized orthopedic surgeon to perform ligament capsular release and tendon lengthening to promote the recovery of fist making function. Therefore, once the fracture site of the metacarpal bone is gradually stabilized, it is necessary to perform passive or active flexion and extension exercises for the palm and fingers under the guidance of an orthopaedic surgeon in order to avoid the inability to make a fist in the future.