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Trichomonas vaginalis, a parasitic protozoan, is the etiologic agent of trichomoniasis, and is a sexually transmitted infection. More than 160 million people worldwide are annually infected by this protozoan. Symptoms Pap smear, showing infection by Trichomonas vaginalis. Papanicolaou stain, 400×
Dec 27, 2022 · Trichomoniasis or “trich” is a common and curable sexually transmitted infection (STI). Trich spreads during sexual intercourse — in semen (cum) and vaginal fluids. Its name comes from the parasite Trichomonas vaginalis, which causes the infection. You may have trich and not know it — most people don’t have symptoms from the infection.
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Oct 16, 2023 · In females, trichomoniasis is a common cause of vaginal discharge and is associated with poor birth outcomes and increased risk of pelvic inflammatory disease. In males, trichomoniasis is often asymptomatic and associated with increased risk of epididymitis, prostatitis and decreased sperm motility.
May 17, 2022 · Your health care provider may diagnose trichomoniasis by doing an exam of the genitals and lab tests. Your health care provider may also look at a sample of vaginal fluid for women or a swab from inside the penis (urethra) for men under a microscope.
Although T. vaginalis might be an incidental finding on a Pap test, neither conventional nor liquid-based Pap smears are considered diagnostic tests for trichomoniasis; however, women with T. vaginalis identified on a Pap smear should be retested with sensitive diagnostic tests and treated if infection is confirmed (1102,1103).
These updated estimates provide the clearest picture to date of how common and costly STIs are in the United States. (January 25, 2021) Advances in Laboratory Detection of Trichomonas vaginalis – from the Association of Public Health Laboratories (APHL) Page last reviewed: July 22, 2021.
Trichomonas vaginalis is a flagellated, sexually transmitted protozoan that more often infects women than men; in the US in 2013–2016, among individuals ages 14 to 59 years, prevalence was 2.1% among women and 0.5% among men (1). Infection may be asymptomatic in either sex.
