Transmission Trichomonas is transmitted during contact with vaginal or urethral secretions.
Men usually have no symptoms but carry the organism in the urethra.
It can also be transferred during sexual intimacy between women. There is also some evidence that the infection can be passed by non-sexual contact. The organism can be cultured from toilet seats, wash cloths and wooden benches of washrooms at room temperature of saunas after 24 hours. Emotional stress, a general lowered resistance, or changes in the pH can cause the infection to become suddenly symptomatic. Sometimes the symptoms are cyclical, appearing for a few days and then disappearing for a month or two.