U.S. National Library of MedicineNational Institutes of Health
Skip navigation
MedlinePlus Trusted Health Information for You MedlinePlus Trusted Health Information for You MedlinePlus Trusted Health Information for You
Contact Us FAQs Site Map About MedelinePlus
español

Printer-friendly version E-mail this page to a friend
Illustration of the esophagus, diaphragm and stomach
  • Related Topics

  • Go Local

    • Services and providers for Hiatal Hernia in the U.S.
  • National Institutes of Health

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 (GERD). GERD may cause symptoms such as

  • Heartburn
  • Problems swallowing
  • A dry cough
  • Bad breath

Hiatal hernias are common, especially in people over age 50. If you have symptoms, eating small meals, avoiding certain foods, not smoking or drinking alcohol, and losing weight may help. Your doctor may recommend antacids or other medicines. If these don't help, you may need surgery.

National Institute of Diabetes and Digestive and Kidney Diseases

Basics Learn More Multimedia & Cool Tools
Research Reference Shelf For You