The common symptoms of ligament injury mainly include, pain, subcutaneous hematoma and swelling, dysfunction, some serious ligament injury may appear tearing sound. 1. Pain: the degree of ligament injury is different, the degree of pain must be different, if only simple ligament strain, the degree of pain is relatively light, if the combination of ligament rupture, due to the serious tissue damage, the pain tends to be more intense. 2. Bleeding and swelling: ligament injuries often injure the surrounding blood vessels and tissues, causing increased bleeding and tissue exudation, manifested by localized swelling, and some of them may have subcutaneous bruising. 3. Dysfunction: if the ligament injury in the joint area, there is a decrease in the stability of the joints, the surrounding muscles spasm, the function of the joints will be affected by the larger, often afraid to move. 4. Tearing sound: when the ligaments of the joints are seriously damaged, the sound of ligament tearing can be heard, and some of them may be combined with avulsion fracture, and there is obvious localized pressure pain. When the above symptoms, we should pay attention to, go to the regular hospital in time to ask the doctor to judge, according to the degree of ligament damage for targeted treatment, to avoid delaying the condition.