The meniscus is an important part of the knee joint, and if it is not properly maintained, it can lead to knee pain, so it should be properly maintained. The quadriceps exercise can strengthen the function of the knee joint, the stability of the knee joint, and help the meniscus repair itself. 2, the wearing of knee pads, especially athletes who like sports, and the elderly with osteoporosis, wearing knee pads is particularly important. The knee pads protect the stability of the knee joint and also protect the meniscus. 3, drugs, such as aminoglycans and, if necessary, intra-articular injections of sodium vitreous acid, can also help the meniscus to repair itself. 4, weight control, weight is an important factor affecting the knee joint, if the weight will increase the burden on the knee joint, thus causing further wear and tear on the meniscus, which will also aggravate the aging of the meniscus. The aging of the meniscus, so weight control is also an important factor in maintaining the meniscus.