Stiffness of the fingers after fracture is caused by the stiffness of the hand after external fixation in a cast. Normally, if functional exercises are not taken, four months will cause irreversible stiffness damage, so proper movement is necessary after fracture. In the early stage of the fracture, the braking method of external plaster fixation or surgical fixation can be adopted. The advantage of surgical fixation is that the early stage can be properly exercised, which can reduce the occurrence of joint adhesions. In addition, external cast braking such as external cast braking in some areas does not require braking the finger, appropriate functional exercises should be performed in the early stage, and in the case of early functional exercises are helpful for the healing of the fracture. Therefore, functional exercises are needed for the stiffness of the finger, and it is possible to move normally in three to four weeks with good functional exercises, but if the functional exercises are not good, it is possible to leave permanent adhesions and stiffness.