An infection from sex. It's curable, and it can get worse if it's not treated.
Would I know if I had it?
The first sign is often a single painless sore, so it’s easy to miss. A blood test finds it.
Can it be cured?
Yes. A shot of penicillin cures it. The sooner you treat it, the better.
What should I do?
Ask for a syphilis blood test. It is part of a full STI check. Tell recent partners too.
How to test for it
A blood test. Part of a full STI check.
Find free testing near you Opens a map of clinics close to you
This is general info, not medical advice. A clinic or doctor can tell you what is right for you. Based on U.S. CDC guidance.