Knee osteoarthritis, also known as degenerative knee disease or age-related knee arthritis, is a common and prevalent disease in middle-aged and elderly people. Knee arthritis life considerations include: 1, more sunshine, pay attention to the cold to keep warm: can reduce the pain of patients with osteoarthritis, improve the condition. 2, diet should pay attention to calcium supplementation: after adulthood, the body slowly enters a period of negative calcium balance, that is, the absorption of calcium decreases and excretion increases. Most of the elderly are suffering from calcium deficiency due to the loss of calcium. Calcium deficiency is an important cause of lesions in the skeletal system. In addition to calcium supplementation, we should also pay attention to collagen supplementation. Collagen is an important component of connective tissue, which determines the flexibility and elastic strength of bones, cartilage, tendons, ligaments, as well as skin keratin, blood vessels and other tissues. 3.Adhere to functional exercise: Exercising the leg muscles, especially the quadriceps, should be the primary treatment to relieve pain, because relying on analgesic drugs may give you a false sense of security and thus overuse the knee joint, and your muscle strength is not enough to protect the joint from further damage. 4. Weight control: Overweight patients with osteoarthritis can reduce the burden on their knee joints by reducing their body weight. Some studies have shown that the impact force on the knee joint when going downstairs is 3-5 times the weight, so losing 5 kg of body weight can eliminate 15-25 kg of impact force acting on the knee joint. It can be seen that the benefits of weight loss is not limited to improving body shape. 5, more car, less walking: usually walk as far as possible to choose a flat and soft surface, wear comfortable flat-soled soft shoes, avoid continuous standing, try not to climb the stairs, up and down the stairs is best to take the elevator or escalator. 6, avoid doing squatting and kneeling movements, avoid sitting on a low bench. 7, the usual use of beds, chairs and sitting toilet not too low: in the bathroom must be installed in the handrail. 8, pay attention to the posture of walking and labor: do not twist the body to walk and work. Avoid squatting for a long time, because the weight of the knee joint when squatting is 3 to 6 times its own weight, squatting at work (such as car mechanics, sand turners) is best changed to a low sitting position (sitting on a small bench), sitting and standing for a long time, but also to frequently change positions to prevent the knee joint fixed a posture and excessive force. 9. Do not wear high heels when walking long distances: wear thick-soled and flexible soft-soled shoes to reduce the impact on the knee joint and avoid wear and tear on the knee joint. In terms of treatment, once the pain in the knee joint appears, it should be treated actively, taking simple therapies such as hot compresses, physical therapy and massage to control the symptoms. At the same time, some pain relief sprays and creams can be used externally. Glucophage capsules (glucosamine) are effective for this disease and need to be taken for a long time to be effective. If the disease does not improve with medication, and it affects walking and daily life, it can be treated with arthroscopic technology in a large hospital, or joint replacement can be done to restore joint function and maintain a good quality of life.