Anti-Double-Stranded DNA Antibody (Anti-dsDNA)
The anti-double-stranded DNA (anti-dsDNA) test detects antibodies that target your own DNA. It is used mainly when lupus is being considered or monitored.
Because anti-dsDNA is fairly specific for systemic lupus erythematosus and can help confirm a diagnosis when other findings point that way. Levels sometimes track with disease activity, including kidney involvement, so it can be useful for monitoring over time. It is most informative alongside ANA and your overall clinical picture.
A positive or rising anti-dsDNA is strongly associated with lupus and, in people with lupus, higher levels can sometimes reflect more active disease or kidney involvement. Because it is fairly specific, a positive result carries meaningful weight, but your clinician still interprets it together with symptoms and other tests rather than in isolation.
A negative anti-dsDNA makes lupus less likely but does not rule it out, since not everyone with lupus tests positive. In someone already diagnosed, a lower level may reflect quieter disease, which your clinician evaluates alongside symptoms.
A negative result is typical. Any positive or rising result should be interpreted by your clinician in the context of your symptoms, ANA, and other lupus-related testing.
Sources
Educational context only, not medical advice or a diagnosis. Reference ranges vary by lab, age and sex; always discuss your results with a clinician.