Early rheumatoid arthritis can not be diagnosed by self-testing due to mild symptoms. Early diagnosis of rheumatoid arthritis needs to be combined with the characteristics of medical history, clinical symptoms, physical examination, auxiliary examination and other comprehensive and comprehensive judgment. In clinical practice, there is no clear diagnostic gold standard for early rheumatoid arthritis, which is comprehensively assessed according to various aspects such as joint involvement, serology, acute phase reactants, and duration of symptoms. For example, the presence of 2-10 medium to large joints involved, the presence of 4-10 small joints involved, the presence of rheumatoid factor or anti-cyclic citrullinated peptide antibodies positive for at least one of them, the presence of synovitis symptoms persisting for >6 weeks, and the presence of CRP or increased blood sedimentation, as well as the exclusion of arthritis caused by other diseases. Suspected rheumatoid arthritis, not self-diagnosis, should be timely rheumatology consultation, clear diagnosis under the guidance of the doctor for treatment.