trichomoniasis

trichomoniasis Infection with the parasite Trichomonas vaginalis. The infection is sexually transmitted, and the vagina is the most common site of infection in women, while the urethra (urine canal) is the most common site of infection in men. Most men with trichomoniasis have no signs or symptoms; however, some men may have an irritation inside the penis, mild discharge, or slight burning after urination or ejaculation. Many women have signs or symptoms of infection which include a frothy, yellow-green vaginal discharge with a strong odor. The infection may also cause discomfort during intercourse and urination, as well as irritation and itching of the female genital area. Treatment is usually with the drug metronidazole given by mouth in a single dose. Having trichomoniasis once does not protect a person from getting it again.