Syphilis is a sexually transmitted disease (STD) caused by a spiral-shaped type of bacteria known as a spirochete. There are three stages of syphilis with distinct symptoms. During first stage of syphilis, a painless ulcer known as a chancre forms. Irreversible organ damage can occur during the late stage of syphilis. Special blood tests are used to diagnose syphilis. Syphilis infection is treated with penicillin. Condom use can only prevent syphilis if the infectious chancre is located in a body area protected by a condom. Potential complications of syphilis in women include:
- aortic aneurysm,
- stroke, and
- other complications related to spread of the infection to the brain.
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