Gastroesophageal Reflux Disease (GERD)
What Is It?
Gastroesophageal reflux disease (GERD) is a digestive disorder. It involves the esophagus, the tube that carries food from your mouth to your stomach.
In GERD, acid and digestive enzymes from the stomach flow backwards into the esophagus. This backward flow of stomach juices is called "reflux". These caustic stomach juices inflame the lining of the esophagus. This causes heartburn and other symptoms. If GERD is not treated, it can permanently damage the esophagus.