Syphilis is an infection caused by bacteria. Most often, it spreads through sexual contact. The disease starts as a sore that's often painless and typically appears on the genitals, rectum or mouth. Syphilis …

Syphilis (/ ˈsɪfəlɪs, ˈsɪfɪlɪs /) is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. [1] .

Jan 30, 2025 · This page answers basic questions about syphilis, including how to prevent and treat it.

Syphilis is bacterial infection most often transmitted through sexual contact. The disease progresses through several stages, each characterized by its own set of symptoms.

Jun 5, 2024 · Syphilis is a sexually transmitted disease. It causes sores on the genitals, rectum, or mouth. Read about testing, prevention, and treatment.

Sep 28, 2025 · Syphilis is a sexually transmitted infection (STI) caused by the bacteria Treponema pallidum. You can get the infection through skin-to-skin contact during vaginal, anal, or oral sex.

Sep 7, 2025 · Syphilis is a sexually transmitted infection (STI) caused by a bacterium known as Treponema pallidum. The infection spreads through sexual contact and can progress through four …

Syphilis is a common sexually transmitted infection (STI) caused by Treponema pallidum bacteria. If untreated, syphilis can result in adult neurological and organ damage as well as congenital …

Aug 4, 2025 · Syphilis is caused by the spirochete Treponema pallidum and is characterized by 3 sequential symptomatic stages separated by periods of asymptomatic latent infection. Common …

Syphilis is a sexually transmitted infection (STI) that’s treatable with medication. Without treatment, syphilis causes serious health problems. It can permanently damage your heart, brain, muscles, …