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Abstract
Objective: Histopathological evaluation of the endometrium in cases having an intrauterine device (IUD) removed for abnormal uterine bleeding. Methods: Fifty-eight consecutive patients with a complaint of uterine bleeding leading to IUD removal were recruited for this study. Endometrial sampling, via Novak curette, was performed during IUD removal for histopathological evaluation of the endometrium. Results: A total of 58 current IUD users, presenting with uterine bleeding, were retrospectively analyzed. Mean age of the women was 37.1 ± 2.1 years (range 25-43). Mean duration of IUD use was 4.2 ± 1.3 years (range 1-10). Out of 58 cases, 21 (36.2%) did not harbor any endometrial pathology. In eight cases (13.8%), hyperplastic endometrial changes were apparent, six of which were simple hyperplasia (four of them were focal). Two cases of complex hyperplasia were detected (one was diffuse with atypia and one was focal without atypia). In this series, there was one case with an endometrial polyp. Mean age of cases with hyperplastic endometrium was found to be statistically high compared to those with normal endometrial histology (42.4 ± 3.2 vs. 37.6 ± 2.1, p = 0.04). In cases with IUD use of > 5 years, chronic endometritis was more prevalent, compared to those with < 5 years of use (χ2 5.08, p = 0.02). Conclusions: IUD use is a risk factor for chronic endometritis. Nevertheless, in 13.8% of cases in this series, as a reason for abnormal uterine bleeding, other than endometritis, endometrial hyperplasia constituted the second most common endometrial pathology among cases over the age of 40, on current IUD use and having complaints of abnormal uterine bleeding. Hence, this finding should prompt the physician to perform endometrial sampling in users of an IUD over the age of 40, presenting with abnormal uterine bleeding.