Transmission of Trichomoniasis

Trichomoniasis is spread through sexual contact. You can get the disease from unprotected (not using a condom) vaginal and anal intercourse, as well as penis-to-vagina contact (without having vaginal intercourse) with an infected person. Women can get the disease from infected men or women. Men usually get the disease only from infected women. The vagina (birth canal) is the most common site of infection in women. In men, the urethra (opening on the penis where a man urinates through) is the most likely to become infected.