Telephone: (617) 983-6712. Fax: (617) 983-6770. www.mass.gov/dph/fpp. The Massachusetts Food Protection Program, within Bureau of Environmental Health in the Department of Public Health, strives to ensure a safe and wholesome food supply in the Commonwealth of Massachusetts.
A hiatal hernia is a condition in which the upper part of the stomach bulges through an opening in the diaphragm. The diaphragm is the muscle wall that separates the stomach from the chest. The diaphragm helps keep acid from coming up into the esophagus. When you have a hiatal hernia, it's easier for the acid to come up. The leaking of acid from the stomach into the esophagus is called gastroesophageal reflux disease (GERD).
The hiatus is an opening in the diaphragm (a muscle separating the abdomen and chest) that the esophagus or swallowing tube passes through to reach the stomach. If the hiatus weakens and stretches, part of the stomach and/or the esophagus can squeeze into the chest cavity, producing a hiatal hernia.