People get trich from having unprotected sexual contact with someone who has the infection. It's spread when semen (cum), pre-cum, and vaginal fluids get on or inside your penis, vulva, or vagina. Trich is often passed during vaginal sex.

Can you get trichomoniasis without being sexually active?

This disease is more common at the period of greatest sexual activity. It was always believed to be a sexually transmitted disease. But, an extensive literature search showed that nonsexual transmission of trichomonas can occur through fomites like towels and toilet seats and from swimming pools.

Can a man give a woman trichomoniasis?

Yes, a man can infect a woman with trich. Most people with a trich infection may not show any symptoms and never know that they have it. However, a man who is unaware of the infection can transmit it to a woman.