ABSTRACT
Transmyometrial pelvic venography was done 18 cases wearing the lippes loop and 18 cases wearing the TCu 200, B, while 10 cases were taken as control. Norma1 venograms were detected in only 22.5% of cases wearing the lippes, loop as compared to 50% of cases wearing the TCu 200 B. Abnormal venograms, showing both varicosities and stasis, were observed in 77.5% of cases wearing the Lippes loop, as compared to only 50% of cases wearing the TCu 200 B. The latter eases showed only stasis without dilatation or varicosities. The main bulk of abnormal venographic findings was observed in those of high parities, and those using the IUCD for more than 3 years. Increased menstrual blood loss was seen in 10 cases wearing the Lippes loop, as compared to only 6 cases wearing the TCu 200 B, and this could be explained by the higher incidence of both varicosities, stasis and uterine congestion associated with the Lippes loop. Thus, another mechanism for the increased menstrual blood loss with IUCD's was introduced, primarily based on the abnormal pelvic venographic findings which were of higher incidence with the Lippes loop variety