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Trumbull, CT
A 21-year-old male asked:

Iv known canker sores as sores in ur mouth from biting cheeks and 2 much citrus stuff. now my dental hygienist says they r a contagious sore. confused?

2 doctor answers7 doctors weighed in
Dr. Paul Grin
Pain Management 37 years experience
Not contagious: Canker sores are not pleasant and can be painful and uncomfortable, they are not contagious. Do not confuse with a cold sore, which is normally on the outside of the mouth and usually are highly contagious.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. John Chiu
Allergy and Immunology 58 years experience
Not: Canker sores are not contagious . Cold sores caused by HSV I are not contagious either since most of us have already been infected with this virus but only a small % people end up with cold sores.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Oct 4, 2016

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