Meniscal wear is less likely to heal on its own. Meniscus belongs to the transparent fiber cartilage, there is no obvious blood transport, its nutrition is the synovial fluid supply inside the joint, once the phenomenon of wear and tear, usually can not be recovered by itself. Meniscus injury can cause swelling of the joint cavity, joint activity is limited, the affected limb in the stairs, after strenuous exercise, lower limbs after weight-bearing, frequent activities of the knee joint, can appear more obvious popping and pain symptoms. In severe cases, it can cause cartilage damage to the femoral condyle and form osteoarthritis, which will lead to adhesion and stiffness of the joints in the later stage. When meniscus injury is suspected, patients need to go to the orthopedic department of the hospital in time, check the MRI of the knee joint to determine the damage of the meniscus, so that arthroscopic surgery or other symptomatic treatment can be given in time. After the meniscus is worn out, patients should reduce the force on the knee joint in normal activities, avoid repeated flexion and extension activities, avoid excessive extrusion and friction of the meniscus to prevent meniscus wear and tear from aggravating, and at the same time, nutritive lubricants can be injected into the joint cavity, such as sodium vitrate, to alleviate the friction and promote the recovery.