A member asked:

Can canker sores spread through oral sex?

4 doctors weighed in across 2 answers

No: The term "canker sore" is commonly used to describe recurrent aphthous stomatitis. This condition is inflammatory and is not caused by any specific bacteria or virus. These annoying ulcers are not contagious.

Answered 1/13/2015

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Dr. Paul Grin answered

Specializes in Pain Management

Not likely: Canker sores have not been proven to be caused by a virus or bacteria, and they are not contagious, or a sign of any other disease.

Answered 4/3/2015

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