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Incompetence of the esophageal sphincter is primarily characterized by gastroesophageal reflux disease (GERD). This condition occurs when the lower esophageal sphincter fails to close properly, allowing stomach acids to flow back into the esophagus, leading to symptoms such as heartburn, regurgitation, and difficulty swallowing. Other conditions associated with sphincter incompetence include hiatal hernia and esophagitis, which can exacerbate the reflux symptoms.

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2w ago

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