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| Hiatus Hernia |
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In some people, the hiatus can enlarge and the stomach can slip up into the chest through it.
In medicine, when something pushes out of an area it should stay in, it is called a hernia.
Therefore, the stomach "herniates" through the hiatus in the diaphragm and moves into the chest.
As such, anything that is in the stomach - including food, drink and stomach acid, can now move easily back up into the oesophagus (gullet).
This is the cause of the usual symptoms of hiatus hernia:
- heart burn or food regurgitating into the back of the throat on lying down, straining or bending forwards.
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