Why do you some people get canker sores in the mouth?

Occasionally I get these really sore canker sores in my mouth or on the inside of my lips, what causes them?

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  • 4 months ago
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    Lack of B vitamins. Particularly B2, Riboflavin.

    • onthe454 months agoReport

      I read that stress and anxiety can be a cause, and I suffer very badly with that. Do you think that might be a reason?

  • 4 months ago

    no one knows, there is speculation about canker sores, but no real interest in much else. I got them when I had braces but after that they went away.

    • onthe454 months agoReport

      Does it take the form of a latent virus that flares up occasionally? Because that is one Theory I've heard about canker sores that it's a virus that people carry that occasionally erupts in the form of canker sores.

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