Knee pain is considered to be related to trauma, osteoarthritis, chondromalacia patella and other causes, and can be treated with general treatment, physiotherapy, medication, surgery and other methods according to the cause, which will help to recover quickly. 1. Trauma: knee injury, if there is soft tissue or fracture and other damage, will cause knee pain. After the injury, we should pay attention to rest, in the acute period of cold compresses recovery period of hot compresses. Severe pain can be applied anti-inflammatory pain medication, such as celecoxib and other treatment. If there is a fracture, it can be treated with surgical incision and reduction and fixation. 2. Osteoarthritis: Osteoarthritis is caused by degeneration of joints, mostly seen in the elderly population, and can also cause knee pain. Rest and avoid overuse of the joints. The above mentioned NSAIDs can be applied to relieve the pain, together with heat therapy, microwave, baking electricity and other methods of treatment. If the symptoms are severe and cause serious impact on life, surgical treatment, such as artificial joint replacement, can be performed. 3. Chondromalacia patella: after chronic damage to the patellar cartilage, the surface is worn, thickened and not smooth, which causes joint pain and weakness. Usually pay attention to rest, avoid strenuous joint activities. Non-steroidal anti-inflammatory drugs such as celecoxib can be applied for treatment. Usually, you can do muscle strength exercise around the joints, can effectively improve the symptoms. If the knee pain is severe, or accompanied by redness, swelling, fever, activity limitation and other symptoms, you should go to the hospital in time to identify the cause of the disease, and then targeted treatment. The above drugs need to be applied under the guidance of a physician.