STD Facts: Trichomoniasis
(caused by Trichomonas vaginalis, a protozoan parasite)
Trichomoniasis is the most common curable STD in young, sexually active women. With an estimated 5 million new cases in the U.S. each year in women and men, trichomoniasis is more common than chlamydia and gonorrhea.
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- STD Facts: Trichomoniasis (English) (PDF)
- STD Facts: Trichomoniasis (Spanish) (PDF)
- STD Facts: Trichomoniasis (Somali) (PDF)
- STD Facts: Trichomoniasis (Oromo) (PDF)
Signs and Symptoms
- Some women have no symptoms
- Usually begin 5-28 days after exposure
- Itching, burning or pain in vagina
- Frothy, yellow-green discharge with foul odor
- Most men have no symptoms
- Mild discharge from penis
- Pain after urination or ejaculation
Trichomoniasis can be spread:
- Between men and women through penis-to-vagina intercourse
- Between women through vulva-to-vulva intercourse
If trichomoniasis is left untreated:
- Infections can be spread to sex partners
- Uncomfortable symptoms will continue
- In pregnant women, can cause premature delivery and low birth weight
- It can make it easier to transmit or acquire HIV during sex
- Avoiding vaginal, oral or anal sex is the best way to prevent STDs.
- Latex condoms, when used consistently and correctly, can reduce the risk of transmission of trichomoniasis.
- Always use latex condoms during vaginal sex.
- Use a latex barrier (dental dam or condom cut in half) for oral sex on a vagina or anus.
- Limit the number of sex partners.
- Notify sex partners immediately if infected.
- Infected sex partners should be treated to prevent re-infection.
- Get a test from a medical provider if infection is suspected.
- Trichomoniasis can be cured using medication prescribed by medical provider.
- Partners should be treated at same time.
NOTE: A person can be re-infected after treatment.
For more information, contact:
STD, HIV and TB Section
Minnesota Department of Health
Minnesota Family Planning
and STD Hotline
1-800-783-2287 Voice/TTY; (651) 645-9360 (Metro)
CDC National STD and AIDS Hotlines
1-800-CDC-INFO; 1-888-232-6348 TTY
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