Visual explanation of acid reflux caused by a hiatus hernia, highlighting symptoms like heartburn, chest pain, and difficulty swallowing due to esophageal sphincter dysfunction.

Medical diagram illustrating gastroesophageal reflux, often experienced as a key symptom of a hiatus hernia due to the stomach pushing into the chest cavity.
Visual explanation of acid reflux caused by a hiatus hernia, highlighting symptoms like heartburn, chest pain, and difficulty swallowing due to esophageal sphincter dysfunction.