Trichomoniasis refers to an infection of the genital and urinary tract caused by a protozoa (the smallest, single-celled members of the animal kingdom). Trichomonas vaginalis. This infection is passed almost 100% of the time through sexual contact and, occurs more often in individuals who have multiple sexual partners. The protozoanis passed to an individual by contact within the body fluids of an infected sexual partner. It often occurs simultaneously with other sexually transmitted diseases, especially gonorrhea.

In women, the symptoms of trichomoniasis include an unpleasant vaginal odor, and a heavy, frothy, yellow discharge from the vagina. The genital area (vulva) is often very itchy, and there is frequently pain with urination or with sexual intercourse. The labia (lips) of the vagina, the vagina itself, and the cervix (the narrowed, lowest segment of the uterus which extends into the upper part of the vagina) will be bright red and irritated...