The meniscus is the articular cartilage inside the knee joint. With age, the articular cartilage wears out and degenerates, and over time the meniscus disappears, which is the most important reason for the formation of osteomalacia of the knee and osteoarthritis. If you have had a significant external injury or meniscectomy, the meniscus may disappear during the examination. In this case, the treatment should be chosen according to the results of the current examination and the clinical symptoms. In particularly severe cases of osteophytes and osteoarthritis, where pain is evident and affects daily life, only joint replacement surgery can be considered. If you have had a meniscectomy before and are relatively young now, you should pay attention to the maintenance as much as possible, you can take oral glucosamine to nourish the articular cartilage, do more hot compresses and physiotherapy, and avoid knee joint wear and flexion movements.