What Can Happen If GERD Is Untreated?

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In the worst case scenario, you can develop ulcerations or strictures meaning the oesophagus just gets narrowed. There's something called Barrett's oesophagus which is a premalignant lesion, and that's basically when the acid washes up to the base of the oesophagus, the cell lining changes, and it changes to a precancerous cell line and ultimately left untreated that could turn into oesophageal cancer.