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Gastroesophageal reflux disease (GERD)

In GERD, the valve at the top of the stomach (the lower esophageal sphincter) does not close tightly enough. This allows the contents of the stomach to move up into the esophagus.

Primary Medical Reviewer Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer Peter J. Kahrilas, MD - Gastroenterology

WebMD Medical Reference from Healthwise

Last Updated: April 18, 2006
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