Ankle ligament injuries can be assessed by MRI to determine the extent, and usually ligament injuries are categorized into three levels. 1. Grade 1: Grade 1 ankle ligament injuries usually refer to minor ligament injuries where the ligaments are slightly stretched, but the ligaments usually remain intact, and the signals within the ligaments are normal, and are usually not accompanied by swelling. 2. Grade II: Grade II ankle ligament injury usually refers to partial tear and strain of the ligament, the ligament may show thickening, tortuous, some ligament fibers may be broken, T1 weighted image is medium signal, T2 weighted image shows diffuse high signal, and the surrounding soft tissues are usually accompanied by swelling. 3.Grade 3: Grade 2 ankle ligament injury usually refers to complete tearing of the ligament, complete disconnection of the ligament, the ruptured section is usually separated, the T2 weighted image shows obvious high signal, and the surrounding soft tissues are swollen. After the ankle ligament injury, you need to consult a doctor in time, the doctor will clarify the degree of injury, and then choose the appropriate treatment method.