Trichomoniasis is spread through penis-to-vagina intercourse or vulva-to-vulva contact with an infected partner. Women can acquire the disease from infected men or women, whereas men usually only contract it from women.

Most men have no signs or symptoms. Men with symptoms may have an irritation inside the penis, mild discharge, or slight burning after urination or ejaculation.

In women, trichomoniasis causes a frothy, yellow-green vaginal discharge with a strong odor. In infected pregnant women, a premature rupture of the membranes and premature delivery is possible.

Trichomoniasis may increase a woman’s risk of acquiring HIV infection and transmitting it to her partner