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Heartburn, or acid indigestion, is a burning sensation in the central chest or upper central abdomen, though the discomfort may radiate to the neck, throat, or jaw. Heartburn is usually due to gastric reflux into the esophagus, as the major symptom of gastroesophageal reflux disease (GERD).[1]

References[edit | edit source]

  1. "Acid Reflux (GER & GERD) in Adults | NIDDK". National Institute of Diabetes and Digestive and Kidney Diseases. Retrieved January 7, 2019.