
Cases of syphilis in the United States 2021, by age group and sex
In 2021, the highest rate of syphilis in U.S. men was reported in the age group between 25 and 29 years with 68.1 cases per 100,000 population. This statistic shows the rates of reported cases of primary and secondary syphilis in the United States in 2021, by age group and gender.