Celiac disease is an autoimmune condition triggered by gluten. Gluten damages the lining of the small intestine, and this damage affects nutrient absorption. Since a gastroenterologist specializes in the digestive system, this doctor confirms the diagnosis and tracks your intestinal health. This is how a gastroenterologist can help manage this condition and its symptoms:
Routine Blood Testing
If you have symptoms of celiac disease, your gastroenterologist orders blood tests that look for specific antibodies. These are proteins your immune system makes when gluten triggers a reaction. You can get a standard first screening, and your doctor may add follow-up tests to get a clearer picture:
- Initial screening test: Checks for the main antibody linked to celiac disease
- Immune system deficiency check: Looks for a common deficiency that can affect the accuracy of the first test
- Alternative antibody test: Helps when the standard results may not be reliable
- Confirmatory test: A highly specific test that supports the diagnosis
Keep eating gluten before testing, or your results may look falsely normal. Blood tests point to likely celiac disease, but they can’t confirm it alone. After a diagnosis, your doctor repeats the screening test to track how well you avoid gluten. Falling antibody levels often reflect less gluten exposure, and your doctor uses these results to guide your next steps.
Upper Endoscopy
An upper endoscopy confirms a celiac disease diagnosis. Your gastroenterologist uses a thin, flexible tube with a camera, which passes through your mouth to your small intestine. You receive sedation for comfort, and the procedure is typically quick.
While the scope is in place, your doctor takes several small tissue samples called biopsies. A pathologist studies these samples, and the report describes any damage to the villi. Villi are tiny, finger-like projections on the intestinal lining. Damaged villi look flattened or worn down.
You need to eat gluten in the weeks before the endoscopy, or the biopsy may miss damage. Your doctor will give you specific instructions on timing and amount. If you already stopped eating gluten, tell your gastroenterologist before scheduling the procedure.
Dietary Changes
A strict, lifelong gluten-free diet is the only current treatment for celiac disease. Gluten appears in wheat, barley, and rye, and it hides in many processed foods. Your gastroenterologist may refer you to a registered dietitian who works with celiac patients. This expert also points out hidden gluten sources like these:
- Soy sauce and some salad dressings
- Soups, gravies, and sauces thickened with flour
- Meats and imitation seafood that are processed
- Medications and supplements
- Oats processed in shared facilities
Since cross-contact also exposes you to gluten, separate toasters and cutting boards help at home. Restaurants vary in their practices, so ask staff about gluten-free preparation. Look for certified gluten-free labels on packaged foods.
Ongoing Management
Celiac disease requires long-term follow-up care. Most patients return three to six months after diagnosis, and they then schedule yearly visits. At each visit, your doctor reviews symptoms, repeats antibody tests, and checks your weight. If symptoms continue despite a gluten-free diet, your doctor looks for hidden gluten or related conditions.
Since celiac disease affects nutrient absorption, your gastroenterologist may test for deficiencies. Typical checks include iron, vitamin D, vitamin B12, folate, and zinc. Some adults need a bone density scan, and others need a repeat endoscopy. Your doctor may also recommend certain vaccines, such as the pneumococcal vaccine.
Visit a Gastroenterologist Today
Celiac disease affects each person differently, and management needs shift over time. A gastroenterologist provides testing, diagnosis, and long-term monitoring. If you have ongoing digestive symptoms or a family history of celiac disease, schedule an evaluation. Bring a list of your symptoms and current medications to the first appointment.
