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How is an upper endoscopy used to diagnose heartburn and reflux?

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An upper endoscopy uses a thin scope with a light and camera at its tip to look inside of the upper digestive system -- the esophagus, stomach, and the first part of the small intestine, called the duodenum. During endoscopy, your doctor also may take a small tissue sample (biopsy) for testing.

SOURCES: 

National Institute of Diabetes and Digestive and Kidney Disease s: "Upper GI Endoscopy." 

Johns Hopkins Medicine Health Alerts: ''What to Expect From Your Endoscopy.''

Reviewed by Minesh Khatri on September 15, 2019

SOURCES: 

National Institute of Diabetes and Digestive and Kidney Disease s: "Upper GI Endoscopy." 

Johns Hopkins Medicine Health Alerts: ''What to Expect From Your Endoscopy.''

Reviewed by Minesh Khatri on September 15, 2019

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What should I do before an upper endoscopy?

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