Hand trauma rehabilitation is based on the diagnosis and treatment of hand surgery, targeting the various factors of hand dysfunction, such as scarring, contracture, adhesion, swelling, joint stiffness, muscle atrophy, loss of sensation or abnormality, etc., and adopting the corresponding physical therapy, exercise therapy, occupational therapy, assistive devices, rehabilitation engineering, psychotherapy and other rehabilitation means, so as to enable the injured hand to regain the maximum degree of function to adapt to the activities of daily living and work and study. In recent years, due to the development of microsurgery and limb reconstruction technology. In recent years, due to the development of microsurgery and limb reconstruction technology, tendon and nerve rupture, which were considered inappropriate for early repair in the past, can be repaired in one stage, and the defective tissues can be transplanted and reconstructed, which creates a good condition for the functional recovery of the hand, and at the same time, puts forward a higher demand for hand rehabilitation. Beginning to recognize the type of “hand trauma” hand trauma, including open and closed injuries, the former injury is often combined with bleeding, pain, swelling, deformity and (or) dysfunction, the latter subcutaneous tissues in the serious swelling after the injury, easy to make the local blood circulation is impaired, and some patients can lead to necrosis of the distal limbs or soft tissues. Hand trauma is often a compound injury, involving the skin of the hand, subcutaneous tissue, muscles, tendons, bones, joints, nerves, blood vessels and so on. It is usually divided into fractures, tendon injuries, peripheral nerve injuries, burns, and re-implantation of severed fingers. Treatment of different hand trauma Modern medicine requires early diagnosis and early treatment of diseases, as well as early rehabilitation. Rehabilitation should be carried out throughout the clinical work, and its main task is to prevent secondary injuries and disuse changes, maintain and restore function from the requirements of function and comprehensive rehabilitation. I. Rehabilitation of paralyzed hand (1) Pre-operative rehabilitation ①The limb should wear orthosis after nerve injury, so that the joints can maintain the normal range of motion in functional position. ② The joints that have contracture should be traction for a longer period of time with medium and small doses, and with wax therapy and ultrasonic treatment. (iii) Enhance the muscle strength of muscles with residual function to prepare the surgical conditions for muscle grafting and tendon transposition, or to establish compensatory function. ④ Before nerve transposition, massage therapy, electrical stimulation and other treatments are commonly used to delay muscle atrophy. ⑤Psychotherapy. (2) Postoperative rehabilitation should be based on different surgical methods to develop a rehabilitation program, such as tendon displacement surgery requires cast immobilization for 4 weeks. During this period, isometric contraction exercises can be performed according to the original function of the displaced muscle, 3 times a day; small amount of active exercise without load in 2 weeks after the removal of the plaster, and passive exercise and traction to enhance the muscle strength training and correct the contracture of the joint in 2 weeks. When training the function of displaced muscle, first let the patient do the original action, and then use the hand to block the original action, you can complete the new action, through repeated training, you can establish a new sense of movement. Rehabilitation of stiff hand Surgery is the main treatment for bony stiffness, and the postoperative rehabilitation is to reduce swelling and early use of joint continuous passive activity device to avoid joint adhesion. For fibrous joint stiffness, the main traction therapy. The principles of rehabilitation treatment for hand trauma (1) anti-inflammatory, swelling, analgesic, promote wound healing early application of ultra-short wave, microwave, infrared, ultraviolet physical therapy, etc., can improve local blood and lymphatic circulation, enhance the permeability of cell membranes, and improve the regenerative capacity of tissues. (2) Prevent adhesion and soften scar early with pressure therapy, massage, etc. Later, exercise therapy can be used to help tendon sliding, applying passive stretching exercise or hand splints to provide gentle and continuous pulling, so that tendons, ligaments, joint capsules and adhesion bands around the joints can be lengthened and rearranged, and the scar can be loosened. And supplemented with medium frequency electricity, ultrasound, wax therapy, etc., can soften the scar and loosen the adhesion. (3) Increase the exercise function through various exercises to improve muscle strength, increase the range of motion of joints, enhance the coordination of movement, and improve the body’s endurance to exercise. (4) Increase life adaptability through work activities to enhance hand dexterity, hand-eye coordination, control of movement and work endurance, improve perceptual function, improve mood, adjust mental state, and master a life and work skills. (5) Restore sensory function through attention, biofeedback, comprehensive training and recall.