Thediagnosisofceliac diseaseusually involves blood tests and an endoscopy.
This article explains what to expect before, during, and after an endoscopy for celiac disease.
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What Exactly Is an Endoscopy?

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This instrument allows providers to see that everything is in order, or possibly to identify a problem.
Sometimes they even can fix a problem at the same time.
Endoscopes have at least one channel through which tiny tools can be passed.
Upper gastrointestinal (GI) endoscopies are performed bygastroenterologists.
Endoscopies can be performed in a healthcare provider’s office, an ambulatory surgical center, or a hospital.
They may also spray your throat with alocal anestheticso you don’t feel the endoscope go down.
During the procedure:
Usually, an upper GI endoscopy takes 10 to 20 minutes.
Endoscopy Results
Most people get their endoscopy results a few days after the procedure.
A healthcare provider will likely call you, or schedule an appointment to discuss the results.
This is known asvillous atrophy.
Characteristic changes in the grooves and folds of the intestine may also be visible.
In these cases, the diagnosis is made via the biopsy.
Before the endoscopy, you will be sedated and given an anesthetic.
You may fall asleep during the procedure.
In many cases, you will know the result of the endoscopy within a few days.
Stanford Medicine.Preparing for an upper endoscopy (EGD).
University of Michigan Medicine.Upper endoscopy (EGD) prep instructions.
National Celiac Association.Diagnosing celiac disease after going on a gluten-free diet.
Gastroenterology Group of Rochester.Upper endoscopy of Rochester.
National Institute of Diabetes and Digestive and Kidney Diseases.Upper GI endoscopy.
St Marks National Bowel Hospital.Upper gastrointestinal endoscopy.
2023 May;911-916. doi:10.1016/j.gie.2023.01.006
Johns Hopkins Medicine.Upper GI endoscopy.
2022;9(1):e000688.
doi:10.1136/bmjgast-2021-000688
American Gastroenterological Association fact sheet.