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Trichomonas

Trichomonas is a disease that is almost always spread from person to person during sex. Trichomonas is caused by a small parasite called Trichomonas vaginalis.

What are the symptoms?

Men who have trichomonas usually do not have symptoms. The symptoms of trichomonas in women may include:

  • frothy, green or yellow, foul or strong smelling vaginal discharge
  • itching, redness, and soreness of the vagina
  • burning when going to the bathroom
  • pain during sex.

You must see your doctor to check if you have trichomonas.

How long will it last?

With proper treatment the infection usually clears up in 1 week.

What is the treatment?

  1. Metronidazole (Flagyl)

    You will need to take this medication prescribed by your physician.

    If you are pregnant or there is a possibility that you might be pregnant, DO NOT TAKE FLAGYL before discussing it with your doctor.

    Do not drink any alcohol while you are taking Flagyl and for 2 days after you finish the medication. Drinking alcohol while you are taking Flagyl may cause a severe hangover.

    Flagyl may be taken with food to prevent nausea and vomiting (possible side effects of the drug).

    Your treatment is ______________________________________

    ________________________________________________________.

  2. Contacts

    Tell everyone with whom you have had sex in the last 3 months about your infection. They must also be treated with Flagyl, even if they have no symptoms. Do not have sex until your symptoms are gone and both you and your partner have finished your treatment.

  3. Prevention

    Because trichomonas is sexually transmitted, there are ways that you can help prevent this infection. Not having sex (abstinence) is the best method of prevention. Use of condoms is the next best method. In addition, you are less likely to get an STD if you have just one sexual partner.

When should I call my health care provider?

Call during office hours if:

  • Your symptoms last more than 7 days.
  • You have other questions or concerns.
Written by David W. Kaplan, M.D., and the staff of the Adolescent Medicine Center, The Children's Hospital, Denver, Colorado.
This content is reviewed periodically and is subject to change as new health information becomes available. The information is intended to inform and educate and is not a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional.
Copyright © 2003 McKesson Health Solutions LLC. All rights reserved.
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