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Syphilis preferentially destroys tiny blood vessels feeding your nerves. As such, the nerves die from lack of blood flow and the chancre is painless.

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Q: Why are primary syphilis lesions painless?
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What is the medical term for primary sore of syphilis?

Primary of sore syphilis is a chancre.


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Did syphilis have a known cure?

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How do you know you have Syphilis?

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Are the words canker and chancre interchangeable?

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