一期梅毒（肛门下疳）
梅毒性下疳可能出现在肛门及其周围。
Image courtesy of Dr. Susan Lindsley via the Public Health Image Library of the Centers for Disease Control and Prevention.
在这些主题中
梅毒性下疳可能出现在肛门及其周围。
Image courtesy of Dr. Susan Lindsley via the Public Health Image Library of the Centers for Disease Control and Prevention.