Quick Answer
Trichomoniasis causes symptoms in ~30% of women (frothy yellow-green discharge, fishy odor, itching) and ~10% of men (mild urethritis, discharge). Most infections are asymptomatic in both sexes. Treatment is the same: single 2g dose of metronidazole.
- Women: frothy yellow-green discharge, fishy odor, vulvar itching
- Men: usually asymptomatic; mild urethritis
- Both: same treatment, single dose
- Reinfection: extremely common without partner treatment
Context Most Pages Skip
Trichomoniasis is the most common curable STI, yet it is often overlooked because it is so frequently asymptomatic.
The Asymptomatic Reservoir
About 70% of women and 90% of men with trichomoniasis have no symptoms. This silent reservoir drives ongoing transmission. Treatment is a single dose of metronidazole or tinidazole.
⚕️ This page is educational and does not replace advice from a licensed clinician. If you may have been exposed to an STI, get tested — most infections are manageable, and many are fully curable.
Sources & Further Reading
- CDC — Sexually Transmitted Infections
- CDC STI Treatment Guidelines
- WHO — Sexually transmitted infections fact sheet
- MedlinePlus — Sexually Transmitted Diseases
Figures reflect CDC surveillance and WHO estimates; they are population statistics, not personal risk predictions.