After knee injury, after receiving assessment by rehabilitation doctors in the Rehabilitation Department, according to the type and degree of injury, professional rehabilitation treatment can be carried out, which mainly includes physical factor therapy, exercise therapy and traditional Chinese medicine rehabilitation and other therapies. 1. Physical factor therapy: In the early stage of injury, infrared rays, light therapy and other physical therapy can be used to reduce inflammation and swelling by improving blood circulation; ultrasonic waves and low frequency can be used to promote fracture healing, and ultrasound or pulsed electromagnetic field can be used to reduce scarring and adhesion. 2. Exercise therapy: In the early stage of knee injury, passive and active joint movement techniques, isometric contraction of quadriceps muscle and ankle pump action can be used to promote blood circulation, prevent venous thrombosis and muscle atrophy; in the middle and late stage, knee flexion and extension joint movement training, active and resistance muscle training can be carried out to improve the mobility of joints as well as to improve the stability of knee joints. Weight-bearing training, balance and coordination training, and walking training can also be carried out to improve the function of the lower limbs and restore daily life as soon as possible. 3. Rehabilitation therapy with traditional Chinese medicine (TCM): Through acupuncture, massage, tuina and manipulation, etc., the soft tissues around the knee joint can be loosened and blood circulation can be promoted. It is recommended that patients seek medical treatment in a timely manner and standardize the treatment under the guidance of the doctor to avoid delaying the condition.