Osteoarthritis (OA) is a chronic joint disease characterized by degeneration, destruction and osteophytes of joint cartilage. Osteoarthritis belongs to the category of “bone paralysis” and “knee paralysis” in Chinese medicine. Osteoarthritis is also known as degenerative arthropathy and proliferative osteoarthritis. The different names come from the pathological manifestations of arthropathy, i.e., degeneration of cartilage accompanied by the formation of new bone. The incidence of this disease increases with age and is a long progressive joint disease of the elderly. Through a preliminary epidemiological survey, the prevalence of osteoarthritis of the knee in our population is 9.56%. It reaches 78.5% in people over 60 years old, similar to but not as serious as in western countries. Chitao, Department of Pain, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine Osteoarthritis is a chronic joint disease whose main changes are degeneration of the cartilage surfaces of the joints and secondary osteophytes. The main manifestations are joint pain and inflexibility. X-rays show narrowing of the joint space, dense subchondral bone, broken trabeculae, sclerosis and cystic changes. There is lip-like hyperplasia at the edge of the joint. In the later stage, the bone ends are deformed and the joint surface is uneven. The cartilage in the joint is spalled and the bone fragments into the joint, forming an intra-articular free body. How do we treat osteoarthritis of the knee? First, medication is the foundation. For any pain, pain relief is the first priority. We will give the patient some anti-inflammatory pain medication to take. This will reduce the sterile inflammation in the joint and reduce the pain. We also give drugs such as “aminoglucose and chondroitin sulfate”, which enhance the metabolism of the cartilage and improve its function, and are suitable for long-term use. We also do some herbal fumigation of the knee, silver needle, small needle release, ozone injection, etc. in the muscle strain points around the knee joint to improve the muscle elasticity, strengthen the muscle toughness and reduce the burden on the joint. For intra-articular injections, we believe that closure, or hormone injections into the joint, are indeed fast and cheap, but they tend to aggravate joint degeneration and osteoporosis. Therefore, for patients with joint swelling and effusion, especially purulent effusion, we first inject medical ozone into the joint cavity in stages, which can play a very good anti-inflammatory and pain-relieving role without the side effects of hormones. Sodium hyaluronate can change the rheological state of the joint fluid in the joint cavity, increase the lubrication of the joint, protect the joint cartilage, blunt the sensitivity of the receptors to stimulation, reduce pain, induce the production of endogenous sodium hyaluronate, and achieve the effect of inhibiting the further development of the disease. This is how we can say that we have done almost everything in the treatment of osteoarthritis of the knee, but is this enough? Do we rely on doctors to treat osteoarthritis of the knee? Obviously not, then who? Yes, we rely on ourselves! Why is it ultimately up to you? We say that the doctor is helping the patient by reducing the pain and improving the function of the knee, but if the patient does not take care of it, then all the work is for nothing and the result is more and more pain, more and more money, and more and more resentment towards the doctor. So how do we pay attention to protect the precious knee joint? 1, pay attention to keep warm. 2.Mobility support: mainly reduce the weight-bearing of the affected joint, cane, crutches, walkers, etc., change the negative gravity angle line, according to the deformity, use the corresponding orthopedic support or orthopedic shoes; 3.Functional training: such as knee flexion and extension activities in the non-weight-bearing position to maintain maximum joint mobility; 4.Aerobic exercise: such as swimming, bicycles, etc.; 5.Loss of weight: obesity can be through the intermediate products of the metabolic process 6. self-protection: do not squat or kneel down to get things, sit on a low stool, sleep on a low bed, which increases the friction and weight on the joints; 7. reduce unreasonable exercise, such as knee osteoarthritis patients like to use Tai Chi (repeated squatting), climbing and other sports to exercise the joints, which will only increase the joint torque or make the joint surface overload, resulting in more wear and tear on the joints. Avoid long periods of running, jumping, squatting, and reducing or avoiding stair climbing.