Rheumatoid arthritis can be diagnosed by comprehensively analyzing the patient’s clinical symptoms, signs, medical history and auxiliary examination results. At present, clinical diagnosis of rheumatoid arthritis is often based on the presence of morning stiffness, joint swelling, symmetrical joints, subcutaneous nodules, X-ray changes of the hands, positive rheumatoid factor and swelling, wrist, metacarpal proximal phalangeal joints, and other aspects of a comprehensive diagnosis of rheumatoid arthritis. In addition, blood sedimentation, CRP, immunoprotein electrophoresis, autoantibody spectrum, joint cavity puncture and other related auxiliary tests can also provide corresponding clues for the diagnosis of rheumatoid arthritis. Rheumatoid arthritis needs to be diagnosed by a professional doctor who has some experience in this disease. Patients are advised to consult the rheumatology and immunology department of a regular hospital and follow the doctor’s instructions.