GERD can be diagnosed based on symptoms, but in some cases a diagnosis might involve referral to a gastroenterologist for further testing. These tests allow the gastroenterologist to observe the tissues of the esophagus (with an upper endoscopy), measure the pH (acidity) of the esophagus, or watch the esophageal sphincter in action (with a barium swallow).[1][2]
How is GERD diagnosed?
Written by:
Fact-checked
by:
•Last Updated: May 16, 2025
Gastroesophageal reflux disease (GERD) can be diagnosed primarily through symptoms, but it may require referral to a gastroenterologist for further testing. This testing can include upper endoscopy, pH measurement of the esophagus, or a barium swallow to observe the esophageal sphincter.