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  1. Syphilis - Symptoms and causes - Mayo Clinic

    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 …

  2. Syphilis - Wikipedia

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

  3. Syphilis: Cause, Symptoms, Diagnosis, Treatment & Prevention

    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, …

  4. Syphilis: Symptoms, Causes, and Treatments - Yale Medicine

    Syphilis is a bacterial infection primarily transmitted through sexual contact. The infection is characterized by several stages, each with its own set of symptoms. In its first stages, known as …

  5. Syphilis - Infectious Diseases - Merck Manual Professional Edition

    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 …

  6. About Syphilis | Syphilis | CDC

    Jan 30, 2025 · Syphilis is a sexually transmitted infection (STI) that can cause serious health problems without treatment. Infection develops in stages (primary, secondary, latent, and tertiary). Each stage …

  7. Syphilis: Symptoms, Diagnosis, Treatment, and Prevention

    May 6, 2022 · Syphilis is caused by the bacteria Treponema pallidum and is transmitted through sexual contact. It can be hard to diagnose, but without treatment, it can cause serious damage to multiple …

  8. What is Syphilis? - CVS

    Jan 23, 2025 · Syphilis is an STI that is primarily spread through direct sexual contact. It’s one of the most common STIs, but it is curable with the right antibiotic. Read on to learn more about the …

  9. Syphilis: Symptoms, Causes, Diagnosis, Treatment - WebMD

    Feb 18, 2024 · Syphilis is caused by the bacteria Treponema pallidum. You get it through direct contact with a syphilis sore on someone else’s body. The bacteria can also get into your body through cuts on...

  10. Syphilis is a sexually transmitted disease (STD) that can have very serious complications when left untreated, but it is simple to cure with the right treatment. What is syphilis? Syphilis is a sexually …