What are the clinical manifestations of trichomoniasis?

Trichomoniasis can cause a change in vaginal discharge, such as a different colour, smell, or amount. Some people notice genital itching, soreness, redness, discomfort during sex, or stinging when passing urine. Men may have irritation inside the penis, discharge, or burning after urination or ejaculation. Many infected people have no noticeable symptoms, and symptoms can come and go.

These signs are not specific to trichomoniasis. A [Vaginal Discharge](/symptoms/vaginal-discharge/) or [Vaginal Itching](/symptoms/vaginal-itching/) page may help you name what you are experiencing, but a test is needed to identify the infection.

Book a sexual-health or gynaecology assessment when symptoms appear or after a partner is diagnosed. Avoid sex until you receive clear treatment advice, and notify recent partners so they can be assessed. Do not douche or use scented products to mask symptoms. If diagnosed, complete the prescribed medicine and follow instructions about partner treatment. [Antibiotic Treatment for Pelvic Infection](/treatments/medical-gynaecology/antibiotic-treatment-for-pelvic-infection/) explains why clinician-directed treatment matters.

Arrange prompt care for new discharge, genital sores, pelvic pain, fever, or painful urination. Get urgent help for severe pain, faintness, repeated vomiting, or a high fever. Pregnancy, recent sexual exposure, or symptoms that return after treatment are reasons to contact a clinician without delay.

Ask which symptoms need testing, whether you should be checked for other infections, how partners are managed, and what to do if symptoms remain after treatment.