Meniscus injury is generally divided into 3 degrees, 1 degree and 2 degrees of injury is generally degeneration within the meniscus, did not involve the meniscus surface, only 3 degrees of injury patients involve the meniscus surface, so 1 degree and 2 degrees of injury patients do not need surgical treatment, only conservative treatment can be, 3 degrees of injury patients the vast majority of surgical treatment in order to cure the surgery can be based on the situation of the tear to choose a meniscectomy and meniscal Surgery can choose between meniscectomy and meniscus suture surgery according to the situation of the tear. Meniscus is a cartilage between the femur and tibia, which can play a cushioning role when exercising and can slow down the degeneration of the joints, therefore, it is able to be sutured by possible suture after meniscus injury. Meniscus injury can appear after knee pain, aggravated by activities, sometimes the knee joint can not be stuck in the activities, and sometimes there will be knee joint weakness, if the torn meniscus is not dealt with at an early stage: 1, the patient’s knee pain and other discomforts will be recurring, and sometimes the knee joint will be swollen; 2, torn meniscus will lead to damage to cartilage surfaces of the knee, accelerating the degeneration of the knee joint; so only through the Therefore, only through surgery can the sequelae caused by torn meniscus be minimized, the patient’s motor function be restored, and the patient’s knee pain and other discomforts disappear after surgery.