Knee pain may be caused by meniscus injury, knee osteoarthritis, knee synovitis and other diseases, need to choose the appropriate treatment for the cause of the disease, such as medication, surgical treatment and so on. 1. Meniscus injury: If the knee pain is caused by meniscus injury, for those with obvious pain, you can take anti-inflammatory and analgesic drugs such as ibuprofen and diclofenac sodium as prescribed by the doctor. If the degree of injury is serious, you need to take surgical treatment, such as meniscus suture surgery, meniscoplasty and so on. 2. Knee arthritis and knee synovitis: Knee arthritis and knee synovitis can also lead to knee pain. After diagnosis, you can follow the doctor’s instructions to use topical flurbiprofen gel paste or oral celecoxib and other non-steroidal anti-inflammatory drugs, which can have a pain-relieving effect. Secondly, drugs such as sodium vitrate can also be injected into the joint cavity to provide lubrication and cartilage repair. If the damage is more severe, surgical treatments such as arthroscopic cleanup and osteotomy are required. There may be many reasons for knee pain, and patients are advised to seek medical examination and cooperate with doctors for standardized treatment.