Final answer:
A common symptom of a hiatal hernia is heartburn, along with potential belching, difficulty swallowing, and chest or abdominal pain.
Step-by-step explanation:
One common symptom of a hiatal hernia is heartburn, which is a sensation of burning in the chest. This symptom occurs because part of the stomach pushes up through the hiatus, an opening in the diaphragm, and causes acid to reflux into the esophagus. Along with heartburn, individuals may also experience belching, difficulty swallowing, and, in some cases, chest or abdominal pain. These symptoms can often be managed with dietary and lifestyle changes but may require medical intervention if severe.