Syphilis Statistics

Men account for the most cases of syphilis, with the vast majority of those cases occurring among gay, bisexual, and other men who have sex with men (MSM).

Most Recent Data

Primary and Secondary Syphilis — Distribution of Cases by Sex and Sex of Sex Partners, United States, 2020

Ribbon plot showing reported cases of primary and secondary syphilis by sex and sex of sex partners during 2016 to 2020.

Image Source: STD Surveillance 2020