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What is GERD?

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In brief: Gastroesophageal Reflux Disease

The lower oesophageal sphincter, which connects the oesophagus and the cardia of the stomach, is responsible for preventing food in the stomach and gastric acid from backing up into the oesophagus.
Abnormal relaxation of the sphincter allows gastric acid to travel back into the oesophagus, which can lead to inflammation, ulcer, bleeding and pre-cancerous changes in the oesophagus if its fragile mucous lining comes under sustained stimulation by gastric acid.

In brief: Gastroesophageal Reflux Disease

The lower oesophageal sphincter, which connects the oesophagus and the cardia of the stomach, is responsible for preventing food in the stomach and gastric acid from backing up into the oesophagus.
Abnormal relaxation of the sphincter allows gastric acid to travel back into the oesophagus, which can lead to inflammation, ulcer, bleeding and pre-cancerous changes in the oesophagus if its fragile mucous lining comes under sustained stimulation by gastric acid.
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