Knee pain should first be identified as the cause of the disease, and targeted physical therapy, medication, and surgery. Causes of knee pain include meniscus injury, osteoarthritis, gouty arthritis, etc. It is recommended to identify the cause of the disease before treatment and target treatment. 1. Meniscus injury: If the patient has meniscus injury due to improper exercise, he can take diclofenac, celecoxib and other drugs to reduce inflammation, and can also use ice packs to reduce the pain and swelling of the knee, and if there is a meniscus tear, it is necessary to repair the meniscus. 2. Osteoarthritis: you can take celecoxib and other drugs to relieve pain, you can also use glucosamine sulfate to nourish the cartilage, you can also use red light therapy to promote blood circulation and relieve pain, if necessary, you can carry out articular cartilage repair, joint fusion surgery. 3. Gouty arthritis: Gout is induced by poor control of uric acid level in the body, you can use the main allopurine to control the level of uric acid, you can also use colchicine, diclofenac and other drugs to relieve pain. Knee pain is caused by a variety of reasons, may also be associated with osteophytes, synovitis, rheumatoid arthritis and other factors, if the symptoms continue to be unrelieved, it is recommended to promptly go to the hospital to find out the cause of the disease, by the doctor targeted treatment, the use of medication, please follow the doctor’s instructions.