Clinical Edge

Summaries of Must-Read Clinical Literature, Guidelines, and FDA Actions

Prevalence of Trichomonas Vaginalis in US males

Clin Infect Dis; ePub 2018 Jun 9; Daugherty, et al

The rates of trichomonas infection in US males are lower than in women, with infection strongly associated with black males, herpes simplex virus-2 (HSV-2) infection, and other factors known to increase sexually transmitted infection (STI) rates. Utilizing the NHANES database, researchers searched for all men aged 18-59 years during 2013-2016. During these years, the survey included urine testing for trichomonas infection using PCR. Information was also obtained regarding patient demographics and other STIs. They found:

  • Overall, 0.49% of men aged 18-59 years tested positive for trichomonas infection.
  • African American men had the highest rate at 3.6%.
  • There was no significant association with trichomoniasis and age.
  • Higher rates of infection were observed in smokers, HSV-2 infection, men who had sex at an earlier age, less frequent condom usage, and in those with more lifetime sexual partners.


Daugherty M, Glynn K, Byler T. The prevalence of Trichomonas vaginalis infection among US males, 2013-2016. [Published online ahead of print June 9, 2018]. Clin Infect Dis. doi:10.1093/cid/ciy499.