8 doctors weighed in:
Is a canker sore a form of herpes?
8 doctors weighed in

Dr. Kenneth Grossman
Dentistry - Endodontics
5 doctors agree
In brief: No
A canker sore is an aphthous ulcer. It occurs indifferent locations than herpetic ulcers.
Herpetic ulcers are caused by a virus and occur on the vermillion border of the lip. Aphthous ulcers are on the cheeks and tongue and caused by trauma, stress , hormonal, etc.

In brief: No
A canker sore is an aphthous ulcer. It occurs indifferent locations than herpetic ulcers.
Herpetic ulcers are caused by a virus and occur on the vermillion border of the lip. Aphthous ulcers are on the cheeks and tongue and caused by trauma, stress , hormonal, etc.
Dr. Kenneth Grossman
Dr. Kenneth Grossman
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Dr. Robert Kwok
Pediatrics
2 doctors agree
In brief: No, not herpes
Cold sores (see picture) are on the lips or on the face.
They are caused by recurrences of herpes virus, which lives in the nerves after an initial infection, and then travel down the nerves to cause the cold sores at the skin surface from time to time. Canker sores are inside the mouth, and are not from herpes, but are due to the immune system reacting to something on the inside of the mouth.

In brief: No, not herpes
Cold sores (see picture) are on the lips or on the face.
They are caused by recurrences of herpes virus, which lives in the nerves after an initial infection, and then travel down the nerves to cause the cold sores at the skin surface from time to time. Canker sores are inside the mouth, and are not from herpes, but are due to the immune system reacting to something on the inside of the mouth.
Dr. Robert Kwok
Dr. Robert Kwok
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