Background: Despite the fact that copper IUD family planning has been used for decades globally, many side effects are still being reported, including extensive uterine bleeding. The aim of the study was to use Doppler ultrasonography to predict abnormal uterine bleeding in women after intrauterine contraceptive device (IUCD) insertion. Patients and methods: This study was a prospective clinical trial that included women who presented to the Obstetrics and Gynaecology Department at Zagazig University Hospitals and had been using an IUCD. Three groups of 111 women participated in the study: Thirty-seven women in Group I who use the Cu-380A copper intrauterine device have reported menorrhagia or menometrorrhagia. Thirty-seven women in Group II are CIUD users who have not reported abnormal uterine bleeding. As a control group, Group III consists of 37 women who do not use CIUD and do not report abnormal uterine bleeding. Every patient had their uterine arteries examined with ultrasound technology, and their resistance and pulse indices were measured using the Doppler technique. Results: RI and PI were substantially lower in group I women than in groups II and III women (p < 0.001). The optimal threshold value for menorrhagia prediction in IUCD women using UA RI is less than 0.77. This has 83.02% specificity and 94.34% sensitivity. AUA PI of less than 2.06 is the best cutoff value for predicting menorrhagia in women with IUCD. Conclusion: Uterine artery Doppler indices can be used in prediction of menorrhagia for proper patient selection for IUCD insertion.