Skip to content

Trich (TV)

Trichomoniasis, also known as trich, is a sexually transmitted infection (STI) caused by a parasite called Trichomonas vaginalis (TV).

It is passed on through unprotected sex (without a condom) and can also be spread by not washing sex toys in between use.

Wearing condoms for all sexual activity can protect against STIs.

Trichomoniasis symptoms can be hard to spot and may be similar to other sexually transmitted infections (STIs). They usually start within 5-28 days after being infected, but it can sometimes be longer.

Symptoms for anyone with a vagina:

  • yellow-green discharge from your vagina – this may look frothy or smell like fish
  • itching, pain, soreness, swelling or redness in or around your vagina
  • pain when peeing or having vaginal sex
  • tummy pain

Symptoms for anyone with a penis:

  • discharge from your penis
  • pain when peeing
  • needing to pee often
  • pain or soreness in your penis, testicles (balls) or bottom, or when you ejaculate

Symptoms are more common if you have a vagina, and they can come and go.

Trichomoniasis may not show in STI tests immediately but it is important to test if you start showing symptoms.

Testing may involve using a swab (like a large cotton bud) to take a sample of fluid from your penis or vagina.

You can get tested at:

You can find your nearest service using our find a service tool.

If you test positive, Trichomoniasis is easily treated with antibiotics. You should inform your sexual partners so they can get tested and treatment too.

Emergency

If your local GP or sexual health clinic is closed or you need to access help or medication over a weekend, emergency information is available here:

Emergency Contraception HIV PEP SEXUAL ASSAULT ABORTION