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  1. Syphilis - Wikipedia

    It may occur early, being either asymptomatic or in the form of syphilitic meningitis; or late as meningovascular syphilis, manifesting as general paresis or tabes dorsalis.

  2. 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 …

  3. 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 …

  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 …

  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. …

  6. Syphilis: Symptoms, Treatment, and Prevention - Verywell Health

    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 …

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

    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, …

  8. Syphilis Guide: Causes, Symptoms and Treatment Options

    Sep 27, 2024 · Syphilis is a sexually transmitted infection caused by a type of bacteria called Treponema pallidum. In its earliest stage, syphilis produces an open sore (ulcer) that leaks …

  9. Syphilis - World Health Organization (WHO)

    May 29, 2025 · Most infections are asymptomatic or unrecognized. WHO estimates that 8 million adults between 15 and 49 years old acquired syphilis in 2022. Syphilis in pregnancy, when not …

  10. Syphilis: MedlinePlus Medical Encyclopedia

    Syphilis is a bacterial infection that is most often spread through sexual contact. Syphilis is a sexually transmitted infection (STI) caused by the bacterium Treponema pallidum. This …