[Changes in the vaginal flora caused by supporting pessary treatment in pregnancy]

200 pregnant women with supporting pessary treatment because of cervical insufficiency were compared with one of normal pregnancies concerning microbiological findings and puerperal morbidity. -- 5,5% of the women in the supporting pessary group had pathogenic organisms in their cervix before first amnioscopy, compared to 2% in the control group. The different results of cultural microbiologic examinations in both groups depend on type and duration of birth as well as time of amnion rupture. Women with premature rupture of the membranes (31,0%) had more pathogenic organisms than women with rupture (2,5%) in time. There was no higher infection morbidity compared to the control group.