A hernia is when part of your insides bulges through your muscle or other tissues. A hiatal hernia occurs when the top of your stomach or another internal organ pushes through an opening in your ...

A hiatal hernia is a common medical condition where a portion of the upper stomach pushes through a hiatus, or opening, in the diaphragm muscle and into the chest. While it’s most common in older ...

A hiatal hernia can cause acid reflux, as it affects the muscles that prevent stomach acid from flowing back up the esophagus. A hiatal hernia occurs when the stomach bulges through a gap in the ...