+Acid reflux is the backward flow of [Stomach Acid](/wiki/stomach_acid) into the [Esophagus](/wiki/esophagus), causing irritation and often a burning sensation. This common digestive issue can lead to discomfort and may signal underlying conditions.
+## See also
+- [Heartburn](/wiki/heartburn)
+- [GERD](/wiki/gerd)
+- [Digestion](/wiki/digestion)
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