The clinical symptoms of ankle ligament strain are mainly the following: First, pain, after ankle ligament strain, there will be continuous pain symptoms at the ligament injury site, usually medial collateral ligament or lateral collateral ligament injury. In the inversion position or valgus for stress, the pain symptoms will be aggravated, and weight-bearing walking will also aggravate the pain symptoms. Second, swelling, ankle ligament strain will have local bleeding, vascular permeability will also significantly increase, so soft tissue tension will significantly increase, swelling symptoms are more obvious. Thirdly, the swelling and pain of the ankle joint can lead to the limitation of ankle joint activities, mainly flexion and extension activities, inward and outward turning activities and rotation activities of the ankle joint. The above symptoms are the common manifestations of ankle ligament strain. After clinical examination, the diagnosis of strain can be confirmed, and timely treatment can promote the recovery of ligament injury.