Gastroesophageal reflux disease (gerd) occurs when stomach acid frequently flows back into the tube connecting your mouth and stomach (esophagus) this backwash (acid reflux) can irritate the lining of your esophagus causes gerd is caused by frequent acid reflux when you swallow, a circular band of muscle around the bottom of your. Acid reflux disease reason. Gastroesophageal reflux disease (gerd), also known as acid reflux, is a long-term condition in which stomach contents rise up into the esophagus, resulting in either symptoms or complications symptoms include the taste of acid in the back of the mouth, heartburn, bad breath, chest pain, regurgitation, breathing problems, and wearing away of the teeth.
acid reflux disease reason