Abstract Background: Management of uterine polyps is primarily based on the hysteroscopy and biopsy. Aim of Study: Is to compare the diagnostic performance of transvaginal color Doppler sonography (TVCD) and sono-hysterography (SHG) in the diagnosis of endometrial polyps. Material and Methods: Thirsty-four women (mean age, 38.6 years; range, 28-55 years) with clinical or B-mode sonographic suspicion of endometrial polyps were included in this prospective study. Transvaginal color Doppler sonog-raphy first and then SHG were performed in all patients. On TVCD, a polyp was suspected when a vascular pedicle pene-trating the endometrium from the myometrium was identified. On SHG, a polyp was suspected when a focal polypoid lesion was seen within the endometrial cavity. All patients underwent hysteroscopy and endometrial biopsy, the findings of which were used as the criterion standard. Sensitivity and specificity for TVCD and SHG were calculated and compared by the McNemar test. Results: Hysteroscopy and endometrial biopsy findings were as follows: 33 (97.1%) cases had endometrial polyps, while 4 (11.8%) had endometrial hyperplasia, 6 (17.6%) had endometritis, 2 (5.9%) had fibroids, and 2 (5.9%) had adeno-myosis. Accuracy and p-value for TVCD and SHG were 58.82% and 0.441 and 91.17% and 0.005, respectively. Conclusion: Findings showed that there was a significant difference between color doppler results and sono–hysterog-raphy findings. Saline infusion Sonohysterography is signif-icantly more accurate than transvaginal color Doppler ultra-sonography in the detection of endometrial polyps.