Overview
HEALTH GUIDE REFERENCE FROM A.D.A.M
Alternative Names
Canker sores and fever blisters
Information
Question:
Are fever blisters and canker sores the same thing?
Answer:
No. Canker sores occur only inside the mouth and are not contagious. They sometimes occur as a result of trauma (biting the inside of the lip, burning the mouth with hot food), but may also occur without any known reason.
Fever blisters or cold sores are caused by herpes simplex virus type 1 and are very contagious. Fever blisters often come back in the same location.
Review Date: 5/13/2008
Reviewed By: Linda Vorvick, MD, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
Reviewed By: Linda Vorvick, MD, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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Source Doc: 1_002088
3.1 Phillip Lim
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