3 doctors weighed in:

Blisters in the mouth. Hsv?

3 doctors weighed in
Dr. Joel Gallant
Internal Medicine - Infectious Disease
2 doctors agree

In brief: Not usually

Hsv is more likely to cause blisters on the lips (cold sores) than blisters in the mouth.
The exception is primary herpes (the first episode), especially in children. Ulcers in the mouth can be aphthous ulcers or may be caused by other viral infections, HIV infection, or syphilis. Herpes would be lower on the list. Chronic, recurrent, or non-healing oral ulcers should be evaluated.

In brief: Not usually

Hsv is more likely to cause blisters on the lips (cold sores) than blisters in the mouth.
The exception is primary herpes (the first episode), especially in children. Ulcers in the mouth can be aphthous ulcers or may be caused by other viral infections, HIV infection, or syphilis. Herpes would be lower on the list. Chronic, recurrent, or non-healing oral ulcers should be evaluated.
Dr. Joel Gallant
Dr. Joel Gallant
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