[Studies on the increase in the incidence of endometrial and ovarian in cancer in Czechoslovakia during 1960-1973]

During the time period of the last 12 years the incidence of the endometrium carcinoma in the whole CSSR rised to 155,5% in the consideration of the incidence in the years 1961 to 1963. In the same time period the incidence of the ovarial carcinoma has grown up to 117,8% only, what seems to be still in the limits of average incidence shift of all female malignancies in the CSSR (117,1%). The rising incidence of endometrium carcinoma affects primarily the elderly women, but testiefies also that this malignancy is among them today much more frequent. Therefore the rising incidence cannot be explained only as a manifestation of elderly of the female population. In agreement with this reality the endometrium carcinoma is today diagnosed significantly more frequently also among the younger women (at least since 40 years of age). The totals of all endometrium carcinomas rised even more than incidence. The gynaecologists meet today 162% of such malignancies in comparison with the numbers in the years 1961-1963. It means that in the whole CSSR yearly 500 endometrium carcinomas more are diagnosed than before 12 years. The incidence of cervix carcinoma dropped during the same period significantly and the endometrium carcinoma became therefore nearly as frequent as cervical malignancy (1:1,2). Possible reasons of these frequency changes are discussed.