• Trichomoniasis


    Trichomoniasis is a common sexually-transmitted disease. It often affects the lower genital tract in women and inside of the penis in men. It can be cured with proper treatment.


    Trichomoniasis is caused by a specific parasite. The parasite is passed through sexual contact. It mainly affects genital tissue.

    Risk Factors

    Factors that may increase your chance of trichomoniasis include:
    • Multiple sexual partners
    • Sex without a condom
    • History of sexually transmitted diseases


    Trichomoniasis does not always cause symptoms. Men are less likely to have symptoms than women.
    Symptoms in women may include:
    • A foul-smelling, greenish-yellow or gray discharge from the vagina (often in large amounts)
    • Irritation, itching, and/or soreness in the genitals
    • Pain or discomfort when urinating
    • Pain or discomfort with sex
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    Symptoms in men may include:
    • Discharge from the penis
    • Itching and/or irritation in the urethra
    • Pain or discomfort when urinating
    • Burning sensation after ejaculation
    Male Urethtra
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    The doctor will ask about your symptoms and medical history. A physical exam will be done. Vaginal fluid or discharge will be examined from women. Urine, semen, or penis discharge will be examined from men. The samples will be sent to a lab to confirm trichomoniasis.


    Trichomoniasis is can be treated with antibiotics. The antibiotic may be given in a single dose.
    Trichomonisasis is easily passed back and forth between sexual partners. Your partner(s) should also be treated, even if symptoms are not present. An infected person can infect their sexual partners even if they do not have symptoms.
    For best results:
    • Avoid sex until your treatment is done and your symptoms are gone. .
    • Do not drink alcohol while taking antibiotics.


    To help prevent STDs like trichomoniasis:
    • Use condoms during sexual intercourse
    • Be monogamous or limit the number of sexual partners


    The American Congress of Obstetrics and Gynecology http://www.acog.org

    Centers for Disease Control and Prevention http://www.cdc.govSTD hotline: 1-800-227-8922


    Sex Information and Education Council of Canada http://www.sieccan.org

    The Society of Obstetricians and Gynaecologists of Canada http://www.sexualityandu.ca


    Trichomoniasis. Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/std/trichomonas/STDFact-Trichomoniasis.htm. Updated November 30, 2011. Accessed February 19, 2013.

    Trichomoniasis. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what. Updated September 4, 2012. Accessed February 19, 2013.

    Trichomoniasis. National Institute of Allergy and Infectious Diseases website. Available at: http://www.niaid.nih.gov/topics/trichomoniasis/Pages/default.aspx. Updated March 31, 2009. Accessed February 19, 2013.

    Workowski KA, Berman S, Centers for Disease Control and Prevention. Sexually Transmitted Diseases Treatment Guidelines, 2010. MMWR 2010;59(No. RR-12):1-110.

    Revision Information

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