Syphilis is a bacterial sexually transmitted disease. There were 146,000 new cases of syphilis (all stages) reported in 2020.


It usually begins as a painless sore on genital area, and is spread through direct contact with the sore during anal, oral or vaginal sex.  It also can be spread mother to newborn during pregnancy or vaginal childbirth.

Health problems

It can cause serious health problems if untreated and can be transmitted to an unborn baby.


If treated CAN be cured with an antibiotic.


There are no vaccines for Syphilis.

Treponema pallidum on the surface of human skin, bacterium which causes syphilis, sexually transmitted bacterium, close-up view. 3D illustration

new cases of infection reported in 2020

CDC information on Syphilis