What causes trichomoniasis?

Switch to mobile view »

Trichomonas vaginalis

Trichomoniasis is caused by a parasite called Trichomonas vaginalis.1

It is transmitted sexually through penis-to-vagina intercourse or vulva-to-vulva (the genital area outside the vagina) contact with an infected partner.1 Once acquired, the organism attaches itself to cells that line the urogenital tract, typically infecting the vagina in women or the urethra in men.1,2

While men normally get trichomoniasis from an infected woman, women can get trichomoniasis from sexual contact with an infected partner of either sex.1

Trichomoniasis risk factors

Certain people may be at a higher risk of getting Trichomoniasis.3,4 You could be at risk if you:

  • Have multiple sex partners
  • Are African-American
  • Have bacterial vaginosis
  • Have a history of previous STDs

If you think you're at risk of contracting trichomoniasis, or you're suffering from any symptoms, talk to your doctor or healthcare professional. He or she can diagnose the infection and prescribe the treatment you need.

  1. Trichomoniasis CDC Fact Sheet [Internet]. CDC; 2007 Dec [accessed 2008 Jul 18]. Available from: http://www.cdc.gov/STD/Trichomonas/Trichomoniasis-Fact-Sheet.pdf
  2. Lehker MW, Sweeney D. Trichomonad invasion of the mucous layer requires adhesins, mucinases, and motility. Sex Transm Infect. 1999 Aug;75(4):231-8.
  3. Sobel JD. Vaginitis. N Engl J Med. 1997 Dec 25;337(26):1896-903.
  4. Heller DS, Maslyak S, Skurnick J. Is the presence of Trichomonas on a Pap smear associated with an increased incidence of bacterial vaginosis? J Low Genit Tract Dis. 2006 Jul;10(3):137-9.

Only Tindamax® is approved to treat both bacterial vaginosis and trichomoniasis (TV).

Clinical Insight

Oral vs vaginal cream therapy: Patient preference for oral dosing is demonstrated to be 84%. More»

Beyond BV

Tindamax® may be prescribed for other infections including: