Rheumatoid arthritis can usually be detected by symptoms such as morning stiffness, symmetrical swelling, pain, and dyskinesia of the small joints of the hands, wrists, and feet, but it requires a combination of laboratory tests to confirm the diagnosis. Rheumatoid arthritis is a chronic autoimmune disease. Rheumatoid arthritis can usually be detected by symptoms such as morning stiffness, symmetric swelling, pain, and dyskinesia in the small joints of the hands, wrists, and feet. However, laboratory tests such as joint X-ray, C-reactive protein, rheumatoid factor, blood sedimentation, immunoglobulin, complement, autoantibodies, and anti-cyclic citrullinated polypeptide (CCP) antibodies are also needed to confirm the diagnosis of rheumatoid arthritis. Rheumatoid arthritis mainly affects the joints in the early stage, and may also cause lesions in other tissues or organs if not treated as early as possible. If rheumatoid arthritis has been diagnosed, it is recommended to consult the rheumatology and immunology department in a timely manner, and to follow the doctor’s instructions to take medication to alleviate the symptoms, control the development of the disease, and to follow up on a regular basis. If the symptoms are similar to those of rheumatoid arthritis, it is necessary to go to the hospital in time to do a comprehensive examination to find out the cause of the disease and make appropriate treatment in time.