Gastroesophageal reflux disease (GERD) is diagnosed in people who persistently suffer the effects of stomach contents rising up into the esophagus (the tube that carries food from the mouth to the stomach).
At the point where the esophagus meets the stomach, a ring-like muscle called the lower esophageal sphincter (LES) acts like a valve that opens to allow food to pass through and closes to keep stomach contents out. When the LES opens spontaneously, for varying periods of time, or does not close properly, stomach contents including digestive juices (called acids) flow back (reflux) into the esophagus causing irritation. This is known as gastroesophageal reflux (GER).
GER is a common occurrence that can cause a burning sensation in the chest or throat when refluxed stomach acid touches the lining of the esophagus. This is called heartburn or acid indigestion. Lifestyle changes and over-the-counter medications usually manage GER.
When GER persistently occurs more than twice per week, it is considered GERD. GERD can eventually lead to more serious health problems including erosion of the esophagus. People of all ages can have GERD.