I. Within 3 weeks after surgery The most important thing is to move early, as early as immediately after the recovery from anesthesia. The greatest difficulties faced by patients at this time are psychological fear (fear of re-rupture) and pain tolerance. The purpose of exercise is twofold: 1 to prevent adhesions and 2 to promote healing; the later the exercise, the more likely adhesions will occur and the more painful the tendon will be, with a greater likelihood of rupture. Question 1: Can the tendon move or rupture after suturing? First of all, the surgeon will use the best sutures (fine and strong sutures, 2 ethibon non-absorbable sutures can lift a small rhinoceros) to connect the tendon. Therefore, the tendon can withstand a certain amount of tension after surgery, but the force is transmitted through the sutures. However, if the suture is strong, it can only withstand a certain load and will break if it is bigger; at the same time, the suture is also an elastomer, and repeated pulling will also cause fatigue and lead to rupture. Therefore, the correct answer is to follow the correct exercise method, the tendon rupture suture can be active after surgery and will not rupture. Question 2: What is the correct way to exercise? The correct way is to move passively. The ruptured tendon cannot withstand too much tension: for example, after a flexor tendon rupture, it can be actively straightened and passively flexed; while an extensor tendon rupture is actively flexed and passively straightened. The injured muscle can never actively contract, i.e., exert force; movement in the opposite direction can exert force. Some studies have shown that early stretching exercises promote the formation of longitudinal alignment of new collagen fibers, reduce adhesions and promote healing. Question 3: How long and how many times a day should I move? The purpose of early tendon activity is to prevent adhesions, so only 1 extreme movement per day is required, with full flexion and full extension; this 1 movement takes a long time course, up to 20 minutes, due to the pain of the postoperative wound. The exercise is followed by rest in the joint rest position to create conditions for the tendon to heal. The tendon heals without tension, which means that the tendon must heal without tension and in the resting position. The healing time takes roughly 3 weeks for the fibrous scar to heal. Question 4: Is it better to practice more and more every day for a longer period of time? The process of exercise is also injury, the more times and the longer the time, the more local inflammation of the tendon, but not conducive to the repair of the tendon. So it is enough to ensure one extreme exercise every day. Question 5::What is the role of sutures in the tendon healing process? In the early stage, before the tendon is healed, the sutures are used to connect the tendon and transmit the force; after the tendon is healed, the sutures no longer play a role. Second, 4 to 5 weeks after surgery Instruct the patient to move the affected limb (finger) lightly and actively, with gentle movements and appropriate force, 3 times a day, 5 min each time. Massage the muscles and joints, together with the use of local physical therapy, such as ultra-short wave, spectrum and other therapies. It is equivalent to muscle stretching exercise, which is beneficial to the reconstruction and shaping of muscle fibers. Third, 6 to 10 weeks after surgery The functional exercise of impedance is gradually increased in the later period, and the functional activities are from simple to complicated and progressive. Encourage the patient to do daily life movements, and strive for complete recovery in 4-8 weeks.