Osteoarthritis is a chronic arthritis caused by joint degeneration and destruction of joint cartilage. Patients are mostly middle-aged and elderly people over 45 years old. The onset of the disease is slow and often multi-joint. There may be persistent vague pain in the affected joints, which is aggravated by activity and improves after rest. Sometimes there may be acute pain episodes with joint stiffness and a popping sound when the joint is moved. The joint stiffness increases after sitting for a long time and improves after a little activity. In the late stage, there may be swelling and enlargement of the joint and limitation of movement. Osteoarthritis is a rheumatic disease with a high incidence and is associated with aging, trauma, inflammation, obesity, metabolic disorders and genetics. Self-diagnosis of osteoarthritis is important for early detection of the disease and preventive and control measures, while pain, stiffness, swelling, and the emission of friction sounds are all symptoms of the disease. If measures are taken in the early stages of the joint lesion, the treatment effect will be more satisfactory. However, when the condition worsens, permanent loss of motion is likely to occur. Therefore, some of the following symptoms should be paid attention to: a. Restriction of joint movement. If one or more joints in the body begin to seem to move uncomfortably, you should think that you may have osteoarthritis, and that it may be in its early stages. Stiffness of the joints. 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. Clicking or other frictional sounds when the joint moves. In the later stages of osteoarthritis, as the cartilage in the joint degenerates and peels off, the bone under the cartilage is exposed. When the joint moves, the bones under the cartilage at both ends are exposed and make a sound when touching each other. Fourth, whether the joint is enlarged and deformed. When a joint is degenerated, the synovial membrane of the joint often becomes inflamed. Since there are many nerve endings distributed on the synovial membrane as pain receptors, after these pain messages are transmitted to the cerebral cortex, the synovial membrane will secrete more synovial fluid to lubricate and nourish those damaged synovial tissues. The increased fluid accumulation in the joint space causes swelling and makes pain worse, even if the joint is difficult to rotate. Although osteoarthritis theoretically affects joints throughout the body, it is the more active, weight-bearing joints, such as the fingers, knees, hips, cervical spine, lumbar spine, and ankles, that are most affected. When discomfort, inflexibility, pain, stiffness and swelling occur in these joints, it is important to go to a regular hospital to receive a diagnosis from a specialist in a timely manner. The patient with osteoarthritis should take precautions: 1. Weight-bearing and large activities of the joints should be reduced as much as possible to slow down the progress of the disease. 2. Obese people should lose weight to reduce the load on the joints. 3. 6. Pay attention to weather changes and avoid dampness and cold. Prevention of osteoarthritis: Although the occurrence of osteoarthritis cannot be completely prevented yet, there are some measures that can reduce or delay the occurrence of osteoarthritis. These measures include reducing weight, avoiding high heels, protecting the joints from injury, such as avoiding repeated impact or torque on the joints, and minimizing frequent ascents. If there is meniscal damage, it should be repaired or sutured through arthroscopy, if there is joint ligament damage, it should be treated promptly, and intra-articular fractures should be surgically repositioned anatomically. If there is deformity around the joint, surgery should be performed to correct the deformity in time. In addition, attention to taking Vit A, Vit C, Vit E and Vit D supplementation also have a certain preventive effect on osteoarthritis. The most important thing to do is to take the best possible anti-inflammatory and analgesic drugs during the attack period, and try to take them after meals. The joints can be protected by moist hot compresses. 5. The diseased joints should be protected by sheaths. 6.