![]() ![]() In latent syphilis, which can last for years, there are few or no symptoms. There may also be sores in the mouth or vagina. In secondary syphilis, a diffuse rash occurs, which frequently involves the palms of the hands and soles of the feet. The primary stage classically presents with a single chancre (a firm, painless, non-itchy skin ulceration usually between 1 cm and 2 cm in diameter) though there may be multiple sores. The signs and symptoms of syphilis vary depending in which of the four stages it presents (primary, secondary, latent, and tertiary). ![]() Syphilis ( / ˈ s ɪ f ə l ɪ s/) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. Treponema pallidum usually spread by sex īlood tests, dark field microscopy of infected fluid Ĭondoms, Long-term monogamous relationships Electron micrograph of Treponema pallidum
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