HLA-DQ2 and HLA-DQ8 are inherited gene variants linked to celiac disease. In this condition, eating gluten triggers an immune reaction that damages the small intestine. The genetic test helps assess whether celiac disease is likely.
No. Many people carry these variants without developing celiac disease. A positive result shows a genetic predisposition, meaning that developing the disease is possible. It does not establish that gluten is causing your symptoms.
If neither variant is found, celiac disease is very unlikely. Genetic testing can be useful when other results are unclear.
Diagnosis usually involves antibody blood tests and sometimes small-intestine tissue samples. These assess signs of the disease rather than inherited risk.
Tell your clinician if you have already stopped eating gluten. A gluten-free diet can change antibody and intestinal test results. Discuss the planned testing before changing your diet.

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