Objective: This study was designed to assess the possible relationship between the position of an intrauterine contraceptive device (IUCD) inside the uterus and abnormal uterine bleeding using three-dimensional (3D) ultrasound.
Methods: We measured the IUCD-fundal distance and the IUCD endometrial distance using 3D ultrasound in 100 patients who presented with abnormal uterine bleeding following IUCD insertion. The same distances were measured in another 100 patients, who represented the control group, without any form of abnormal uterine bleeding following IUCD insertion.
Results: There is no direct relationship between IUCD position and menorrhagia, although IUCD per se, regardless of its position in the uterine cavity, can cause menorrhagia. In contrast, there is a possible relationship between the position of the IUCD and metrorrhagia.
Conclusion: Displacement of IUCD from its proper position within the uterine cavity can induce abnormal uterine bleeding, especially in the form of metrorrhagia.