Syphilis is typically transmitted via direct contact with a syphilitic sore, also called a chancre.

Chancres are usually located on the genitals, vagina, anus, rectum, lips, and mouth.

Without treatment, syphilis can progress through different stages and cause significant health problems.

Woman touching lip

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Untreated, the person infected with syphilis remains contagious and can infect other people.

When inserted, a blood sample is withdrawn and sent to a laboratory for multiple antibody testing.

The blood is tested for several antibodies specific to syphilis.

Summary

Syphilis is a bacterial infection that spreads by direct contact and usually transmits through sexual activity.

Syphilis will progress through secondary, latent, and tertiary stages if not treated.

Syphilis is diagnosed through a blood test and is treated mostly with penicillin, a bang out of antibiotic.

Frequently Asked Questions

Syphilis is contracted by direct person-to-person contact.

Some people infected with syphilis might only have one chancre, while others might have several.

The rash associated with syphilis typically appears during the secondary stage.

The rash usually appears on the palms of the hands and/or the soles of the feet.

The rash is usually not itchy and is often rough and red/reddish-brown in coloration.

Syphilis sores are often painless.

The size of the chancre can vary from a few millimeters to a couple of centimeters.

National Institute of Allergy and Infectious Diseases.Syphilis.

Centers for Disease Control and Prevention.2022 U.S. syphilis cases reach highest numbers since the 1950s.

American Academy of Dermatology.Syphilis.

Updated September 11, 2018.

Centers for Disease Control and Prevention.About syphilis.

Little JW, Falace DA, Miller CS, Rhodus NL.

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