The first IUCD was introduced by Richter in 1909, since then many types of IUCDs were introduced. It was reported that IUCDs are used by over than 100 million women in the world. Intra uterine contraceptive device induced irregular uterine bleeding is one of the most common complications for many women using this method. Abnormal uterine bleeding due to IUCD is considered iatrogenic dysfunctional uterine bleeding. The recent use of transvaginal ultrasound is proved to provide clear images of the uterus revealing its exact size, position, myometrium and endometrium. 3D ultrasound is more accurate than 2D ultrasound for the identification and location of IUCDs. It was reported that the position of the IUCD inside the uterine cavity is related to the occurrence of abnormal uterine bleeding. The IUCD-F and IUCD-E distances were measured using 3D transvaginal ultrasound. This study revealed that there is a direct relationship between the IUCD-F and IUCD-E distances and abnormal uterine bleeding in the form of metrorrhagia, while, IUCD presence, per say, regardless its position in the uterine cavity is related to the occurane of menorrhagia