title: Nongonococcal urethritis.
abstract: Nongonococcal urethritis may now account for most cases of symptomatic urethritis seen at VD clinics in the United States. Well-controlled etiologic studies in nongonococcal urethritis have implicated Chlamydia in over 40% of cases but the etiology of Chlamydia-negative cases remains uncertain. Tetracycline provides effective antimicrobial therapy, but tests for cure are often inadequate, and distinguishing relapse and reinfection is difficult. For tetracycline-allergic patients, erythromycin should be used. Control measures to decrease transmission of nongonococcal urethritis are not well established.
mesh_terms: D002690:Chlamydia Infections / Q000175:diagnosis; D004917:Erythromycin / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008297:Male; D009175:Mycoplasma Infections / Q000175:diagnosis; D012749:Sexually Transmitted Diseases / Q000209:etiology; D013752:Tetracycline / Q000627:therapeutic use; D014245:Trichomonas Infections; D014509:Ureaplasma; D014526:Urethritis / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*
chemical_list: D004917:Erythromycin; D013752:Tetracycline