The key to preventing and treating osteoarthritis of the knee is early detection of the disease. The “Guidelines for the diagnosis and treatment of osteoarthritis” prepared by the Chinese Medical Association Orthopaedic Branch states that patients should seek medical attention promptly if they experience symptoms such as knee pain, swelling, stiffness, especially pain when going up and down stairs, squatting and rising, and joint discomfort when the weather changes, so as not to delay treatment. People with these factors should be extra alert to the 5 signs of osteoarthritis: ① Age > 50 years old, women in menopause; ② joint pain, obvious when going up and down stairs, squatting and getting up; or indolent walking, standing for a long time; when the joints start to look uncomfortable after exercise, you should think that you may have osteoarthritis, and may be in the early stage. People with osteoarthritis often feel stiffness in their arms and legs. Some people suddenly feel as if some joints are “locked” after sitting for a long time. This is especially noticeable in the morning after waking up and after a long period of inactivity. Although there is no pain, the joints may move with a sense of friction, or click with pain; because of the degeneration of the patellofemoral cartilage and roughness, they may make friction sounds when touching each other. ⑤ The joint is enlarged and deformed. To do the early prevention and treatment of osteoarthritis of the knee, we advocate people to protect their joints scientifically and treat osteoarthritis effectively in a timely manner from the following two points 1, scientific and reasonable sports and exercise methods can delay joint degeneration and slow down the progress of the disease. Many patients do not know how to use and exercise their joints correctly, and do not understand the scientific way of exercise. Many obese middle-aged and elderly patients, after the emergence of joint pain and other symptoms, think that no exercise, the joints will become stiff and can not walk, so still constantly squatting and other exercises, the result is the more pain the more practice, the more practice the heavier the symptoms. Advocate scientific and reasonable exercise. Exercise to master a principle, that is, more activity, less weight bearing. That is, non-weight-bearing activities to do more, which will make the surrounding soft tissues and ligaments better flexibility, strength, and less burden on the bones. For example, cycling, swimming and walking are non-weight-bearing or lighter weight-bearing exercises, which are worth promoting. But mountain climbing, stair climbing, squatting and prolonged running, jumping, squatting, kneeling and other more strenuous exercises that increase the wear and tear on the joints are not suitable for patients with osteoarthritis. As for the intensity and duration of exercise, you should “believe in your body’s feelings”. Once the body becomes uncomfortable, you should immediately stop and rest, do not insist. Now there are a lot of exercise methods, a variety of different, but everyone has their own physical characteristics, and even their own disease characteristics, exercise should not listen blindly and blindly follow, but to their own more thought and advice, compile some targeted, suitable for their own action routine, perseverance, there will be a gratifying harvest. 2, tailor-made, combined Chinese and Western medicine, standardized treatment of knee osteoarthritis “osteoarthritis diagnosis and treatment guidelines” mentioned that the purpose of treatment of osteoarthritis is to reduce or eliminate pain, correct deformity, improve or restore joint function, improve the quality of life. The overall treatment principle is a combination of non-pharmacological and pharmacological treatment, with surgery only when necessary. With regard to the treatment of osteoarthritis, an appropriate treatment plan should be developed taking into account the patient’s own situation, such as age, gender, weight, own risk factors, and the location and extent of the lesion. For patients with osteoarthritis who are first seen and do not have severe symptoms, non-pharmacologic treatment is preferred. If non-pharmacologic treatment is not effective, pharmacologic treatment, including the application of local and systemic drugs, can be chosen according to the joint pain. If none of the above treatments are effective and the lesion is very severe, surgical treatment may be considered, with arthroscopic surgery and open surgery (osteotomy, joint fusion and arthroplasty) chosen depending on the lesion.