Zöliakie Glutenunverträglichkeit-Test: when to see a doctor?

A direct-to-consumer test for celiac disease or gluten intolerance can provide initial clues but does not replace a medical diagnosis. The available context lacks specific data on such tests. When to see a doctor: if you have persistent symptoms like bloating, diarrhea, abdominal pain, fatigue, or unexplained weight loss. Also, if a home test yields a positive result, medical confirmation is essential because false positives and negatives are common. A doctor can order specific antibody tests (e.g., tTG-IgA) and a duodenal biopsy, which is the gold standard. Importantly, a gluten-free diet should only be started after a confirmed diagnosis, as it can skew test results. Caveat: many consumer tests rely on unvalidated IgG methods, which are not appropriate for celiac disease. If you suspect celiac disease or gluten intolerance, consulting a gastroenterologist or primary care physician is the safest course.