Meniscus tear without surgery may lead to knee hypoplasia, increased meniscus tear area, bone and joint diseases, etc. 1. Decreased knee joint function: Meniscus tear will change its shape and is prone to pain, strangulation and other symptoms. If no surgical treatment is done, the joint area will be swollen and painful again and again, limiting the joint movement, and it will lead to knee joint function reduction. 2. Increase in the area of meniscus tear: If the meniscus tear is not treated with surgery in time, the area of the tear will further increase after activity and the meniscus damage will be more serious. 3. Osteoarthritic diseases: after the meniscus tear, there will be unevenness of the joint surface. If the surgery is not taken in time, it is easy to cause the wear and tear of the joint surface, which will lead to osteoarthritis and other diseases in the long run. Once the knee injury, should actively seek medical treatment, meniscus tear do not do surgery, should cooperate with the doctor to actively improve the relevant examination, to determine a reasonable treatment program, so as not to delay the condition.