[Hormonal contraception--throboembolism and surgical risk].

Epidemiological, coagulational, haemodynamical, and morphological studies are critically analysed in this review. Our attitude about the surgical operation risk under hormonal contraceptives is explained. In smaller operative measures there musn't be a break in hormonal contraception. Planned greater operations are to performe only 4 to 6 weeks after cessation of hormonal contraceptives, i.e., after the first spontaneous menstrual bleeding. Hints for the necessity greater operations without a removal after pill or an additional risk factors are given.