Syphilis; primary sores on penis, 19th C
Wellcome Collection

Syphilis; primary sores on penis, 19th C

Christopher D'Alton

CC0 — Public Domain
Wellcome Collection

Pencil with watercolour drawing showing the primary sores (chancre) of syphilis on the penis of a patient at the Royal Free Hospital, London. Primary sores are usually painless indurated, eroded papules, occurring at the site of entry of the infection.

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