Rheumatoid arthritis is a multisystemic autoimmune inflammatory disease of unknown etiology that primarily involves peripheral joints. The main clinical features of rheumatoid arthritis are symmetrical polyarthritis, mainly peripheral joint damage, chronic swelling, pain, morning stiffness and dysfunction, early joint destruction, and late joint deformity, ankylosis and dysfunction. The typical joint performance of rheumatoid arthritis 1, joint pain: the most prominent symptom of the disease. Chronic, symmetrical is its characteristic. Morning stiffness is obvious at night, in the morning and when the joints start to move: morning stiffness refers to the stiffness and tightness of the joint parts after the patient wakes up in the early morning, and this feeling can be improved significantly after activity. This symptom is most prominent in RA and can last for more than one hour or even the whole morning; 2. Joint swelling: uniform swelling around the joints, with a few redness; 3. Movement disorders: Movement disorders caused by early joint swelling can be recovered with the elimination of swelling; however, joint deformities in the middle and late stages can lead to loss of work capacity or even inability to take care of themselves; 4. Osteoporosis: In RA patients Quite common, and the incidence increases with the prolongation of the disease, and this manifestation, in RA without hormone therapy, is also prevalent.