A normal rheumatology triple test does not usually rule out lupus erythematosus. The rheumatology trio usually includes C-reactive protein, anti-streptococcal hemolysin O test, and rheumatoid factor. When there is joint pain, limited mobility joint effusion, etc.. Rheumatology triple test can be used as an initial screening test for rheumatic diseases, but it has limitations, and usually imaging tests and autoantibody tests are also needed to make a definite diagnosis. The diagnostic criteria for SLE are immunologic and clinical. Immunologic classification criteria for SLE include an antinuclear antibody titer of ≥1:80, with positivity for one or more of anticardiolipin antibodies or β2GP1 or lupus anticoagulant; a decrease in complement C3 and/or complement C4; and positivity for specific antibodies, such as dsDNA or anti-Sm antibodies. Clinical classification criteria include fever; buccal erythema; discoid erythema; photosensitivity; nonerosive arthritis; oral ulcers; manifestations of plasma membrane inflammation, such as pleurisy or pericarditis; renal lesions associated with lupus erythematosus, such as proteinuria; leukopenia, thrombocytopenia, or hemolytic anemia; and the presence of neuropsychiatric symptoms, such as delirium, epilepsy, or psychosis. If a patient is suspected of suffering from lupus erythematosus, it is recommended to go to a regular hospital to be diagnosed by a doctor after a series of examinations, and not to diagnose by oneself in order to avoid delaying the condition.