What is it?

Trichomoniasis is a disease caused by infection with trichomonas, a parasite sexually transmitted. In women, it causes foul smelling vaginal discharge, itching and painful urination while in men usually there are no symptoms. In pregnant women, trichomoniasis may lead to early labor. The parasite passes between people during vaginal, oral or anal contact. The infection can spread even when the person does not experience any symptoms. Using condoms lowers the risk of infection.

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Signs & symptoms

Not everyone who has trichomoniasis has symptoms, and they also may develop over time. Women may present with foul-smelling vaginal discharge, which could be gray, yellow, white or clear. Other symptoms may include redness, burning, and itching in the genitals, pain during intercourse or urination and lower abdominal pain. In men, trichomoniasis rarely causes any symptoms. Symptoms may include itching and irritation inside the penis, burning while urination or ejaculation, and penile discharge.


Diagnosis is based upon findings from medical history and physical examination. Further evaluation may include blood tests and a vaginal fluid or urethral swab.


Treatment includes medications such as metronidazole or secnidazole.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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