3 doctors weighed in:

Whats the difference between a cold sore and canker sore?

3 doctors weighed in
Dr. Michio Abe
Internal Medicine
1 doctor agrees

In brief: Cold sore vs canker

Neither one is a medical terminology.
Both are often used interchangeably as they are used by non-medical professionals. A cold sore usually involves lips, and is caused by herpes simplex virus type 1. A canker sore in medicine is called aphthous stomatitis, which usually involves tongue or inside the gum. We don't know what causes it, but it often happens again and again, triggered by stress.

In brief: Cold sore vs canker

Neither one is a medical terminology.
Both are often used interchangeably as they are used by non-medical professionals. A cold sore usually involves lips, and is caused by herpes simplex virus type 1. A canker sore in medicine is called aphthous stomatitis, which usually involves tongue or inside the gum. We don't know what causes it, but it often happens again and again, triggered by stress.
Dr. Michio Abe
Dr. Michio Abe
Thank
Dr. Michelle Marcincuk
ENT - Head & Neck Surgery

In brief: Same

These are layman's terms for the same thing.
They are caused by a virus (typically a herpes virus) and are contagious. So if you have one, do not kiss/have intimate contact or share glasses/utensils, etc with others. And don't kiss/have intimate contact or share glasses or utensils with anyone else who has a cold sore.

In brief: Same

These are layman's terms for the same thing.
They are caused by a virus (typically a herpes virus) and are contagious. So if you have one, do not kiss/have intimate contact or share glasses/utensils, etc with others. And don't kiss/have intimate contact or share glasses or utensils with anyone else who has a cold sore.
Dr. Michelle Marcincuk
Dr. Michelle Marcincuk
Thank
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