Acid reflux is when stomach acid flows into the esophagus and mouth, causing heartburn. GERD is a chronic form of acid reflux, and it can lead to serious health problems if untreated. Triggers of GERD ...
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.
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