What is trichomoniasis?

Trichomoniasis (or “trich”) is a very common sexually transmitted disease (STD) that is caused by infection with a protozoan parasite called Trichomonas vaginalis. Although symptoms of the disease vary, most women and men who have the parasite cannot tell they are infected.

How do people get trichomoniasis?

The parasite is passed from an infected person to an uninfected person during sex.  In women, the most commonly infected part of the body is the lower genital tract (vulva, vagina, or urethra), and in men, the most commonly infected body part is the inside of the penis (urethra).

What are the signs and symptoms of trichomoniasis?

About 70% of infected people do not have any signs or symptoms.  When trichomoniasis does cause symptoms, they can range from mild irritation to severe inflammation.

How is trichomoniasis diagnosed?

It is not possible to diagnose trichomoniasis based on symptoms alone. Your healthcare provider will exam a sample of your vaginal fluid (for women) or a urethral swab (for men) under a microscope.

What is the treatment for trichomoniasis?

Trichomoniasis can be cured with a single dose of prescription antibiotic medication (either metronidazole or tinidazole), pills which can be taken by mouth.

How can trichomoniasis be prevented?

Using latex condoms correctly every time you have sex will help reduce the risk of getting or spreading trichomoniasis. However, condoms don’t cover everything, and it is possible to get or spread this infection even when using a condom.