Trichomonas

Trichomoniasis is a sexually transmitted disease (STD) caused by an infection with the parasite Trichomonas vaginalis. This parasite is spread from person to person during sex, most often through penis-to-vagina or vulva-to-vulva contact. It is uncommon for this infection to affect another part of the body such as the mouth, hands, or anus.

Trichomoniasis testing detects the Trichomonas vaginalis parasite in a sample of urine or body fluid taken from your genitals. A health care provider may order trichomoniasis testing when someone complains of symptoms, is at an increased risk of this infection, or has recently finished treatment for this common STD.