[Endocervical and vaginal changes in women wearing IUD's]

The authors have studied the endocervical and vaginal changes in common vaginal smears from IUD supplied women. 521 smears from IUD supplied women have been comparized with 500 "normal" smears and 210 from women affected by lesions of the cervix uteri. The results point out that the IUD seems to be the cause of two different alterations: 1) bacteriological changes; 2) cytological changes. 1) There is a noticeable increase in mixed bacterial population and trichomonas; this picture corresponds to the one in women with cervical ectopia. 2) Cytologically there is an increase in parabasal-like cells as those from areas of squamous metaplasia. The Aa. assume that probable hormonal or mechanical changes may cause a squamous metaplasia of the cervix uteri in IUD supplied women. These stimuli themselves are the probable cause of the microbial morbid variations.