Trichomoniasis and Trichomonas vaginalis

The organism most often affects the genital tract. In people with a vagina, possible signs include a changed discharge, unusual odour, itching, soreness, burning while urinating, or discomfort during sex. Symptoms vary, and their presence or absence does not identify whether Trichomonas vaginalis is the cause.

Testing may use a vaginal swab or urine sample. For language to describe symptoms, read [Vaginal Discharge](/symptoms/vaginal-discharge/) and [Vaginal Itching](/symptoms/vaginal-itching/). A clinician may also consider other infections or irritation.

Arrange an appointment with a sexual-health clinician or gynaecologist if infection is possible. Share recent exposure details and any medicines already taken. A confirmed infection is treated with prescribed oral antimicrobial medicine; follow the instructions and finish the course.

Current partners may need testing and treatment. Avoid sex until the clinician’s instructions allow it and partner care has been addressed. Do not rely on douches, scented products or leftover medicine. Related treatment information appears in [Antibiotic Treatment for Pelvic Infection](/treatments/medical-gynaecology/antibiotic-treatment-for-pelvic-infection/).

Get prompt medical help for pelvic pain, fever, vomiting, unusual bleeding, faintness, or symptoms during pregnancy. These features can need assessment beyond routine symptom management.

If symptoms return after treatment, arrange review rather than taking another course without advice. The clinician may check adherence, partner treatment, reinfection or another cause.

Which sample will be tested? Could another condition explain my symptoms? Should my partner be treated? Do I need other infection screening or follow-up?