A sexually transmitted infection caused by a parasite.
Trichomoniasis is among the most common sexually transmitted infections. Risk factors include multiple sexual partners and not using condoms during sex.
Trichomoniasis causes a foul-smelling vaginal discharge, genital itching and painful urination in women. Men typically have no symptoms. Complications include a risk of premature delivery for pregnant women.
Treatment involves both partners taking one large dose of a certain oral antibiotic.