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Disease Control Trichomoniasis

Communicable Disease Fact Sheet


It is estimated that 2 million women become infected each year with Trichomoniasis. It is one of the most common sexually transmitted diseases, mainly affecting 16-35 year old females.

What is Trichomoniasis ("trick-oh-moe-nye-uh-sis") also known as "trich"?

Trichomoniasis is caused by a microscopic parasite called trichomonas vaginalis.

What are the symptoms of trichomoniasis?

*Important: many people (both male and female) show no signs or symptoms of this infection. Other symptoms may include the following:


Bad smelling discharge or frothy green discharge from the vagina


Vaginal itching or redness


Painful intercourse


Lower abdominal discomfort


Urge to urinate more often

Most men have no symptoms, but may notice:


Pain during urination or ejaculation


Urge to urinate often


Discharge from the penis

How is trichomoniasis spread?

Trichomoniasis is spread through sexual activity. It needs a warm damp environment to live, so it cannot survive on toilet seats. It can, however, thrive in the vagina, urethra, or bladder. It can also be spread at birth from an infected mother to her baby.

How is trichomoniasis diagnosed?

An examination of vaginal discharge and/or examination of the genitals.

Is trichomoniasis curable/treatable?

Yes. Antibiotics are needed to treat and cure the infection.

Can you become immune to trichomoniasis?

No. Receiving medicine to treat the infection does not mean that you can't get it again.

Can you have other sexually transmitted diseases at the same time?

Yes. It is very possible to be infected with other sexually transmitted diseases at the same time.

How serious is trichomoniasis?

Having trichomoniasis can be very serious because any sexually transmitted disease makes you more likely to acquire HIV infection if exposed.

Where can I learn more information about trichomoniasis?

You can click on our Resource link for further information. The following resources can be contacted for further information relating to trichomoniasis. National STD and AIDS hotlines at 1-800-342-2437 or 1-800-227-8922. These hotlines are open 24 hours a day, 7 days a week. For more information you may use the following links:,, and