Are kanker sores contagious?


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The good news is that canker sores are not contagious like some other mouth sores. There may be a connection between canker sores & stress. If the sores show up around exam time, it may be a sign of how much stress you're under.

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No, canker sores are not contagious. They're caused by stress, injury, or certain types of foods. Thanks for asking ChaCha!

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