Acid reflux occurs when stomach acid travels back up the esophagus. It affects many people occasionally. Gastroesophageal reflux disease (GERD) is a chronic condition in which acid reflux becomes ...
Heartburn is a burning sensation in the chest. Heartburn for multiple days in a row can result from gastroesophageal reflux disease (GERD), a hiatal hernia, Barrett’s esophagus, or esophageal cancer.