Rheumatoid immune diseases refer to diseases of the rheumatoid immune system, which require physical examination, routine blood tests, autoantibody tests, synovial fluid tests, imaging tests, etc. 1. Physical examination: Physical examination is required to determine whether there are any abnormalities in organs such as the heart, liver and kidneys. Secondly, it is necessary to check whether there is any skin rash, muscle atrophy, joint involvement, etc., which indirectly reflects the disease. 2. Routine blood test: The changes in the number of red blood cells, white blood cells, platelets, etc. are used to determine the severity of the rheumatic immune system disease. 3. Autoantibody test: autoantibody is an important symbol for diagnosing rheumatic diseases. At present, there are more than ten kinds of antibodies can be detected by immunoblotting method, and many of them are highly specific for certain rheumatic diseases, which become the diagnostic landmark antibodies. 4. Synovial fluid examination: it can reflect the inflammation of synovial joints, which is valuable for the diagnosis of RA and other arthritis. Detection of urate crystals or pathogens in synovial fluid is helpful in the diagnosis of gout or infectious arthritis. 5. Imaging: X-ray, CT and . MRI can show joint and soft tissue destruction. There are many types of rheumatologic and immune system diseases, so the means of examination also differ. It is recommended that the patient should consult the hospital in time and actively cooperate with the doctor for examination if he/she develops uncomfortable symptoms.