Patellofemoral ligaments that are mildly injured generally do not need to be repaired, but those that are severe need to be repaired. A small number of patients with mild injuries generally do not need special treatment and can return to normal after a few days through rest and braking. If the ligament injury is very serious and is accompanied by other ligament tears, cartilage damage, broken bones, etc., it is necessary to brake for about 2 to 4 weeks, release the immobilization and gradually begin rehabilitation. If the injury is severe, surgery is required to reconstruct the ligament. If the ligament injury is not treated early, dislocation of the knee joint and ligament laxity may occur, which will seriously affect the quality of daily life of the patient. In addition, patients with patellofemoral ligament injury should go to the hospital in time, do the relevant examination, clarify the cause of the disease and then follow the doctor’s instructions for treatment. When daily activities or exercise, pay attention to good protective measures, such as wearing knee pads, wrist guards, etc., in order to increase the stability of the joint.