After the ligament tear, the following conditions will occur: 1, the pain of the injured part, aggravated after activity, rest and inactivity can be significantly reduced. 2, the injured part of the ligament tear will gradually bleeding, edema, early injury without obvious edema, with the extension of time edema gradually increased, in the 3-4 days after the injury edema reached the peak, and then gradually absorbed to reduce. 3, the injured part of the dysfunction. If it is more important ligaments, such as the anterior and posterior cruciate ligaments and collateral ligaments of the knee joint, there will be corresponding movement disorders, and knee instability, thigh ligament tears dysfunction is not obvious, finger parts ligament tears will lead to finger flexion and extension activity disorders, wrist joint activity is limited, so the situation of activity disorders need to be surgically repaired to recover, and if necessary, ligament transplantation.