changes in thromboelastogram in women on hormonal contraception the authors have analysed changes in the thromboelastogram in 411 women on oral contraceptives and in 31 women on no hormonal contraception comparing the results they found no statistically significant differences because the control group was too small in the group of women on hormonal contraception statistically significant differences were recorded in those women whose thromboelastogram was analysed several times the differences having been more pronounced in the women that had used hormonal contraceptives for a longer time as the appearance of thromboembolic complications is a very complex process the authors opinion is that thromboelastogram cannot be considered as a routine method for predicting these complications