Lateral knee ligament injury should be treated with conservative treatment or surgery according to the severity of the disease. The lateral ligament of the knee is mainly the lateral collateral ligament, and its injury is mainly related to the excessive inversion of the knee joint, which can lead to the limitation of the knee joint function and affect the stability of the knee joint, manifested as knee joint pain, swelling and other symptoms. 1. Conservative treatment: If the condition is not very serious and partial tear occurs, braking and resting can be used, and plaster or brace can be given to immobilize the knee joint, together with non-steroidal anti-inflammatory drugs, such as diclofenac sodium, etc., and traditional Chinese medicines, such as panax ginseng tablets, bone-busting tablets and blood-sparing tablets, can be used to activate blood circulation and remove blood stasis. 2. Surgery: If the lateral collateral ligament injury is serious, surgery can be considered, such as direct suture repair, anchor suture with thread, reconstruction, reinforcement repair and so on. Lateral knee ligament treatment is related to the severity of the ligament injury, it is recommended to go to the hospital in time, under the guidance of the doctor to choose the appropriate treatment program, so as not to delay the condition. All of the above medications should be used under the guidance of a doctor.