infectious diseases
Trichomoniasis
Introduction
Trichomoniasis is infection of the vagina or male genital tract withTrichomonas vaginalis. It can be asymptomatic or cause urethritis, vaginitis, or occasionally cystitis, epididymitis, or prostatitis. Diagnosis is by direct microscopic examination, dipstick tests, or nucleic acid amplification tests of vaginal secretions or by urine or urethral culture. Patients and sex partners are treated withmetronidazoleortinidazole. (See also Overview of Sexually Transmitted Infections .) is a flagellated, sexually transmitted protozoan that more often infects women than men; in the US in 2013–2016, among individuals ages 14 to 59 years, prevalence was 2.1% among women and 0.5% among men ( Reference ). Infection may be asymptomatic in either sex. In men, the organism may persist for long periods in the genitourinary tract without causing symptoms and may be transmitted to sex partners. Trichomoniasis may account for up to 5% of nongonococcal, nonchlamydial urethritis in men in some areas. Coinfection with Gonorrhea and other sexually transmitted infections (STIs) is common. 