Merck Manual

Please confirm that you are not located inside the Russian Federation

honeypot link
Primary Syphilis (Mouth Chancre)
syphilis_primary_mouth
Primary Syphilis (Mouth Chancre)

    Syphilitic chancres may appear on or around the mouth.

Image courtesy of the Public Health Image Library of the Centers for Disease Control and Prevention.

In these topics
Syphilis Syphilis