If the diagnosis of osteoarthritis can be confirmed, the following treatments are available (in a stepwise manner): 1. conservative treatment to exercise muscle strength, avoid weight bearing, stairs, and heavy physical labor. 2. 2, oral non-steroidal anti-inflammatory and analgesic drugs (Fenbid, Ralifene, Celebrex, etc.), condition improvement drugs (glucosamine, diacetin, etc.), joint cavity injections (sodium glacial, hormones, etc.). 3, arthroscopic treatment (synovectomy, joint cavity cleaning, etc.) The above three treatments are generally to alleviate the progress of the disease, can not reverse the disease, that is to say, can not make the disease healed, (except for the milder early osteoarthritis). 4, joint surface replacement (to solve the problem of pain and joint function).