Gastroesophageal Reflux Disease (GERD) is a condition in which gastric contents, mainly acid, flows back up into the esophagus. GERD occurs when this backflow is frequent and excessive, causing symptoms and damage to the esophageal lining. GERD causes an array of symptoms including heartburn, chest pain, regurgitation, lump in throat, nausea, vomiting, hiccups, burping and troubled or painful swallowing.
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