Grade 1 ligament injuries are not very serious, ligament injuries can be categorized into three grades, grade 1, grade 2 and grade 3 in terms of nuclear magnetic manifestation. grade 1 injuries are the mildest injuries, which are partial injuries or sprains of ligaments, which can cause pain and swelling at the site of the injury, and individual patients can have subcutaneous bruises and ecchymosis, and there can be obvious pressure pain at the site of the injury. Ligament injuries can lead to significant limitation of joint movement, but the joint is stable and does not lead to joint instability. In grade 1 ligament injuries, early braking of the joint, immobilization in a brace or cast for four weeks, and then normal joint movement and functional exercises can be performed. During the period of immobilization, you can take oral medicines to renew the tendons and bones, such as Pan Long Qi Tablet and Da Qi Li Capsule, etc., and you can also carry out microwave physiotherapy, and in the early stage, you need to carry out early cold compresses.