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
Darkfield micrograph of
Treponema pallidum.

Primary stage syphilis sore (chancre) on the surface of a tongue.

Lesions of secondary syphilis.

Secondary stage syphilis sores (lesions) on the palms of the hands. Referred to as "palmar lesions."

Secondary stage syphilis sores (lesions) on the bottoms of the feet. Referred to as "plantar lesions."

Secondary syphilis rash on the back.
WARNING: the images below depicts the symptoms of STDs and are intended for educational use only. Parental caution is advised.
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Primary stage syphilis sore (chancre) on glans (head) of the penis.
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Primary stage syphilis sore (chancre) inside the vaginal opening.