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Trichomoniasis

Trichomoniasis is one of the most common curable sexually transmitted diseases, especially in young, sexually active women.

PubMed Health Glossary
(Source: NIH - National Institute of Allergy and Infectious Diseases)

About 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.

Trichomoniasis is considered the most common curable STD. In the United States, an estimated 3.7 million people have the infection, but only about 30% develop any symptoms of trichomoniasis. Infection is more common in women than in men, and older women are more likely than younger women to have been infected.

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)... Read more about Trichomoniasis Centers for Disease Control and Prevention (CDC)

What works? Research summarized

Evidence reviews

Nitroimidazole drugs are effective in the treatment of trichomoniasis in women.

Trichomoniasis is a sexually transmitted infection that affects about 120 million women worldwide every year. This review examines the effectiveness of various treatments and found that oral nitroimidazole drugs are effective in treating trichomoniasis in women.

Interventions for trichomoniasis in pregnancy

Metronidazole is effective against a trichomoniasis infection during pregnancy, but may increase the risk of preterm and low birthweight babies.

Treatment of vaginal infections to prevent preterm birth: a meta-analysis

The review evaluated the role of antibiotic treatment for vaginal infections in pregnancy to determine benefits and harms of treatment. The authors concluded that there is little evidence to suggest treatment can reduce the risk of adverse pregnancy outcomes, and further research is needed. The conclusions are broadly based on the evidence presented and can be considered reliable.

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Summaries for consumers

Nitroimidazole drugs are effective in the treatment of trichomoniasis in women.

Trichomoniasis is a sexually transmitted infection that affects about 120 million women worldwide every year. This review examines the effectiveness of various treatments and found that oral nitroimidazole drugs are effective in treating trichomoniasis in women.

Interventions for trichomoniasis in pregnancy

Metronidazole is effective against a trichomoniasis infection during pregnancy, but may increase the risk of preterm and low birthweight babies.

The effectiveness of community interventions to promote condom use in the prevention of HIV and sexually transmitted infections

Since the advent of the HIV/AIDS epidemic in the 1980s, condom promotion has become one of the most widely used interventions to prevent transmission of HIV and sexually transmitted infections (STIs). However, despite widespread promotion of condom use globally, new cases of HIV and other STIs either remain high or continue to rise in some particular regions and settings across the world. It is believed that by modifying the environment in which people live, it is possible to improve access and use of condoms on a large scale so that the transmission of HIV and other STIs decreases. This review aimed to assess if this theory was correct.

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More about Trichomoniasis

Photo of a young adult woman

Also called: Trich, Trichomonas infection

See Also: Vaginal Candidiasis, Bacterial Vaginosis

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