How heartburn and gerd occur acid reflux occurs when the sphincter muscle at the lower end of your esophagus relaxes at the wrong time, allowing stomach acid to back up into your esophagus this can cause heartburn and other signs and symptoms frequent or constant reflux can lead to gastroesophageal reflux disease (gerd). Symptoms and signs of heartburn. Learn the causes, symptoms, and signs of acid reflux (gerd) and the medications used in treatment common symptoms and signs include heartburn, chest pain, nausea, and vomiting pinpoint your symptoms and signs with medicinenet's symptom checker.
symptoms and signs of heartburn
