Hiatal hernia
We will give you the definition, although it can be hard to understand without futher explanations. So we strongly recommend you to follow the links to read all of the information.

Definition:
We say that somebody has a hiatal hernia when the diaphragmatic hole which the esophagus passes through (hiatus), it is not well closed, so the stomach or other viscera, slips up into the thorax.

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