Barrett's esophagus can occur when part of the lining of the esophagus near the stomach changes. Barrett's esophagus is usually the result of repeated exposure to stomach acid. It is most often diagnosed in people with long-term gastroesophageal reflux disease (GERD).The changed lining is not cancer, however, it can lead to cancer later on. This can be diagnosed by and EGD (Upper Endoscopy).
Symptoms of GERD: