How to Check for a Hiatal Hernia
A hiatal hernia occurs when a portion of the stomach, and sometimes other abdominal structures, is able to bulge upward into the chest through a defect in the diaphragm. Since most hiatal hernias do not cause symptoms, they are usually discovered during a routine chest X-ray for an unrelated condition. At other times, a hiatal hernia may be suspected in people with severe acid reflux who fail to respond to antacids or other treatments. For such cases, there are several tests healthcare providers can use to confirm the diagnosis.
Source: Verywell health
