[Statistical observations on the incidence of Trichomonas vaginalis in the female population of Terni from 1974 to 1978].

The casuistics refers to 1646 cases equal to 20,5% of vaginal trichomoniasis in a total of 7996 pap tests examined in the service of Anatomy and Histology Pathology in the hospital of Terni. The exams of the incidences of trichomoniasis in the various age classes, reveals that the main frequency is found in the 2nd., 3rd., 4th decades of life, that is in the period of maximum sexual attivity. Vaginal Trichomonas is rarer before puberty and after the menopause.