Grade III meniscus injuries are less likely to heal on their own. Grade III meniscus injuries are more serious injuries, and conservative treatment is usually not effective, and surgical suturing or excision is usually required. If the meniscal fracture is simple, such as a transverse or longitudinal fracture, meniscal suture surgery is feasible, which helps to restore the function of the meniscus, and can avoid the occurrence of osteoarthritis of the knee joint to a certain extent. After the surgery, rehabilitation of the fracture is carried out gradually under the guidance of the doctor to restore the function of the knee joint. If the meniscus is so badly broken that it cannot be sutured, at this point it may lead to knee dysfunction, and meniscectomy should be considered to safeguard knee function. Meniscus third-degree injury should go to the regular hospital in time, under the guidance of the doctor for standardized treatment.