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What Is Barrett Esophagus?



Outline of woman showing mouth, esophagus, and stomach. Arrows show stomach acid flowing up esophagus to irritate back of throat.

You have Barrett esophagus. This means that there have been changes to the lining of the esophagus near the stomach. The changes may have been caused by the acid reflux that happens with GERD (gastroesophageal reflux disease). The changed lining is not cancerous, but may increase your chances of developing cancer later on. 


When you have GERD

The esophagus is the tube that carries food and liquid from the mouth to the stomach. Your lower esophageal sphincter (LES) is a one-way valve at the top of the stomach. It keeps food and stomach acid from flowing backward. If the LES is weakened, food and stomach acid flow back (reflux) into your esophagus. If this happens often, the condition is called GERD.

Changes in the lining

The stomach is kept safe from its own acid by a special lining. The esophagus isn’t meant to contact stomach acid. With GERD, acid flows back into the esophagus often. This damages the esophagus. In response to the damage, new tissue forms that is not normal. This is Barrett esophagus. The new tissue may keep changing. This is why it is more likely to become cancer in the future.

Preventing further damage

Your healthcare provider may suggest regular tests to keep track of changes in the esophagus. This usually includes an endoscopy, when a flexible lighted scope is placed through the mouth into the esophagus. Biopsies (tissue samples) can be taken of the abnormal areas. You are usually sedated with an IV medicine for comfort. He or she may also suggest ways for you to control GERD. This includes lifestyle changes, medicine, or even surgery. This should help keep your Barrett esophagus from getting worse.

Symptoms of GERD

Symptoms include the following:

  • Heartburn

  • Sour-tasting fluid backing up into your mouth

  • Frequent burping or belching

  • Symptoms that get worse after you eat, bend over, or lie down

  • Coughing repeatedly to clear your throat

  • Hoarseness

Online Medical Reviewer: Image reviewed by StayWell medical illustration team.
Online Medical Reviewer: Kolbus, Karin, RN, DNP, COHN-S
Online Medical Reviewer: Lehrer, Jenifer, MD
Date Last Reviewed: 6/1/2016
© 2000-2016 The StayWell Company, LLC. 780 Township Line Road, Yardley, PA 19067. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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