A third degree meniscus tear without pain needs to be treated conservatively or surgically based on the extent of the tear, the presence of joint strangulation, and the location of the injury. Third-degree meniscus tear, if the meniscus tear range is small, not the whole layer of the tear, and is not in the joint weight-bearing position, the joint does not occur in the situation of strangulation, at this time, you can choose conservative treatment, such as wearing a brace, taking glucosamine drugs, avoid strenuous exercise, etc.. If the meniscus tear is extensive, and the whole layer is torn, the tear is located in the weight-bearing area, and the symptoms of joint locking occur, it indicates that the degree of the tear is very serious, and surgical treatment should be carried out, such as menuplasty. Even if there is no pain, the third degree of meniscus tear should be examined to determine the extent of the disease, and standardized treatment should be carried out under the guidance of the doctor. The above medications should be used under the guidance of a doctor.