A hiatal hernia is a condition where a part of the stomach protrudes through the hiatus, a small opening in the diaphragm, and enters the chest cavity. It is quite common in the United States. The esophagus, or food tube, passes through this opening before connecting to the stomach. If you suspect that you may be experiencing symptoms of a hiatal hernia, we recommend scheduling an appointment with one of our specialists at a convenient location near you.