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 …

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

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

Dec 27, 2022 · 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, …

Mar 6, 2026 · Syphilis is a systemic disease caused by T. pallidum. The disease has been divided into stages on the basis of clinical findings, which guide treatment and follow-up. Persons who have …

May 29, 2025 · WHO fact sheet on syphilis, including overview, symptoms, treatment, prevention and WHO response.

Feb 26, 2026 · Syphilis is a highly contagious disease usually spread by sexual activity. Learn more about syphilis causes, symptoms, diagnosis, treatment, and prevention.

Syphilis is simple to cure when it's found and treated in its early stages. The preferred treatment at all stages is penicillin. This antibiotic medicine can kill the bacteria that causes syphilis. If you're allergic …

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