Ligament injury after the sequelae are mainly two aspects: 1, because after the ligament injury is not cast or brace external fixation, the ligament is not fully relaxed, rest, or due to premature activity led to the formation of ligament local elasticity, toughness decline, length than before has changed, it is easy to lead to the entire joint laxity, poor joint stability will aggravate the degeneration of the joint, resulting in joint parts 2, after the ligament injury due to insufficient rest, it is also possible to form chronic sterile inflammatory lesions locally, whenever the joint area is cold and strain, especially in the resting state, more likely to appear local obvious pain and unfavorable activity symptoms. Whenever the joint is cooled and strained, especially at rest, the symptoms of local pain and unfavorable movement are more likely to appear.