What Causes Canker Sores?

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By james
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2. Bacteria

Canker sores might also sometimes be caused by bacteria. One likely culprit in particular is H. pylori, which is the same bacterium that is responsible for stomach ulcers. While this bacterium is common, and usually quite harmless, it will sometimes cause problems if it is able to proliferate.

Canker sores might also be caused by an allergic response to the presence of certain bacteria in the mouth. The response can cause the immune system to act in a way to repel the bacteria. The patient’s own bodily tissues will sometimes be damaged in the process, potentially resulting in canker sores forming.

Canker Sores

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