Acid reflux happens when the muscle at the bottom of the esophagus (tube that carries food to the stomach from the mouth), called the esophageal sphincter (LES), does not close properly and stomach acid leaks back into the esophagus. This can cause a burning sensation in the chest area. Acid reflux is caused by a number of things, including certain foods like citrus foods and onions, alcohol, and conditions like pregnancy and being overweight.

The following departments see patients with Acid Reflux: