[The colposcopic, cytological and histological changes in the cervix uteri of women under 20 with a first pregnancy].

: The study includes 42 pregnant women chosen at random under the age of 20, in their first trimester presented for voluntary termination of pregnancy. Colposcopic, cytologic and histological test was performed. Chronic, often acute, non-specific inflammatory changes were observed, probably connected with early sex life. The establishing of a histologically atypical results in 33.3% of the cases as well as the observation of 21.7% falsely negative results from the colposcopic study support the theory of pregnancy as a factor causing complication for diagnosis. The relatively low sensitivity of the cytology method and 16.7% false negative results none the less the existence of high specificity (100%) is due to coexistence of low-stage dysplasia (I and II stage) and chronic non-specific inflammatory processes and the early, pilot character of the research.