Because celiac disease has similar symptoms to other diseases, it may be difficult to diagnose. Luckily, blood tests that test for the disease are becoming more widely available, and awareness of celiac disease is increasing. These blood tests are used to look for abnormally high levels of certain autoantibodies (proteins that react against the body’s cells and tissues). If the blood test indicates a possibility of celiac disease, the patient’s doctor may perform a biopsy of the small intestine to confirm the diagnosis.
