Trichomonas vaginalis (TV for short) is a tiny parasite which is passed on during unprotected sex. The infection is found in the vagina  and, if you have a penis,  in the tube urine comes out of (urethra).

The most common way of passing on the infection is through unprotected vaginal sex.

What symptoms could I have?

If you have a vagina you might notice:

• Discomfort while having sex
• Change in  discharge
• Soreness and itching in and around the vagina
• Pain when passing urine

If you have a penis you may not notice any symptoms. However, very occasionally you might notice:

• Burning or pain when passing urine
• Irritation of the foreskin (although this is unusual)
• Discharge from the penis

You can be tested for TV at the sexual health clinic. They will take a swab from the vagina or a urine test if you have a penis. The clinician seeing you will tell you if they advise you test for TV.

You can use the service finder below to find a testing service near you.

TV is treated using antibiotics (tablets by mouth) – usually this is Metronidazole. It is important you do not drink alcohol if taking Metronidazole.

If you are diagnosed with TV, it is very important that your partner is also treated and that you have both finished the tablets before you have sex.

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