Trichomonas vaginalis (TV) is one of the most successful protozoan pathogens and the most common non-viral sexually transmitted disease, responsible for around 180 million new infections worldwide every year. Presentation in females is usually profuse, purulent, malodorous vaginal discharge and vaginal irritation, although infection can be subclinical or asymptomatic. TV may also be associated with inflammation of the cervix (strawberry cervix) that may mimic the cervical tenderness associated with pelvic inflammatory disease (PID). Changes in the cervical cells in women with TV have been likened to the changes seen in early cervical intraepithelial neoplasia (CIN), while in men the infection often presents as urethritis and prostatitis.\u
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