<prompt> Answer this question truthfullyWhat is the relationship between Barretts esophagus and GERD?  <response>: <reason> Barretts esophagus is a condition in which the lining of the esophagus is damaged, and is often associated with gastroesophageal reflux disease GERD, a condition in which stomach acid flows back up into the esophagus. In fact, studies have shown that Barretts esophagus is seen in approximately 10 of patients with GERD. This is because the chronic exposure to stomach acid can cause changes in the cells of the esophagus over time, leading to the development of Barretts esophagus. While not all patients with GERD will develop Barretts esophagus, those who experience frequent or severe symptoms of acid reflux may be at higher risk and should be monitored closely by a healthcare professional. 