With condoms, for example, lesions may be present in areas not covered. Only total absence of any touching of infected tissue will avoid transmission. Transmission most common with exposure through vaginal or anal sex. Casual contact considered to be safe. Many people with trich experience no symptoms.
Symptoms tend to worsen after menstruation.
Men are usually asymptomatic, but symptoms can include unusual penile discharge, painful urination, and tingling inside the penis. Trich can be treated and cured with antibiotics, usually a single dose of Flagyl. May result in tubal scarring, infertility, and risk of tubal pregnancy. Penetrative intercourse is not necessary. Recent reports suggest that transmission can occur in the absence of lesions.