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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. About Syphilis | Syphilis | CDC

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

  3. Syphilis - Wikipedia

    Gummatous syphilis or late benign syphilis usually occurs 1 to 46 years after the initial infection, with an average of 15 years. [3] This stage is characterized by the formation of chronic gummas, which …

  4. Syphilis - Infectious Disease - 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 …

  5. 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 …

  6. STD | Syphilis Symptoms - MedlinePlus

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

  7. 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 four …

  8. 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, brain, muscles, …

  9. Syphilis - National Institute of Allergy and Infectious Diseases

    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 …

  10. Syphilis Guide: Causes, Symptoms and Treatment Options

    Sep 27, 2024 · Syphilis - an easy to understand guide covering causes, diagnosis, symptoms, treatment and prevention plus additional in depth medical information.