ONLY within the past decade has infection with Trichomonas vaginalis as the explanation for a significant proportion of cases of "nonspecific" urethritis been widely recognized. As far as I am aware, however, attention has not been drawn to T vaginalis as a cause of epididymitis.
That trichomoniasis is transmitted venereally, at least in most instances, appears to be rather well established.1" The importance of adequate, and if repeated examination of the symptomatic or asymptomatic sexual partner of the woman with this disease, and of eradication of the infection in the male if treatment is to have permanent effect in the female, has been stressed by Perl3 and others. It is equally true that, for the man with this disease, effectual management must include adequate investigation and treatment of the female partner. Trichomoniasis, long familiar to gynecologists, is thus also a problem for the urologist and the family physician.
Amar AD. Probable Trichomonas vaginalis Epididymitis. JAMA. 1967;200(5):417-418. doi:10.1001/jama.1967.03120180105025