Gastroesophageal reflux disease (gerd) is the long-term, regular occurrence of acid reflux this can cause heartburn and tissue damage, among other symptoms smoking and obesity increase a person. Gastroesophageal reflux disease main causes. Gastroesophageal reflux disease is a condition in which stomach contents, including acid, back up (reflux) from the stomach into the esophagus and even the throat; the main symptom of gerd is frequent and persistent heartburn, which is pain or a burning sensation in the stomach or upper abdomenother symptoms of gerd include regurgitation of bitter acid up into the throat,.
gastroesophageal reflux disease main causes