A hiatal hernia develops when a portion of your stomach migrates upward through your diaphragm, and may require hiatal hernia repair. Your diaphragm is a large, dome-shaped muscle that separates the chest cavity and abdomen and has a small opening called the hiatus.
- The hiatus is where your food tube (esophagus) passes to connect to your stomach
- If the muscles surrounding the hiatus become weak, the upper portion of your stomach can push up through the diaphragm and into your chest cavity