Objective To compare the image quality and adverse effects among different concentrations of nonionic iodinated con-trast media in hysterosalpingography (HSG).Methods 99 female infertile patients were recruited in this study for HSG and were averagely divided into Group A,B and C.The application of contrast media were as follows:iomeprol injection(400 mg I/mL)for Group A,iopamidol injection (370mg I/mL)for Group B,iohexol injection(300 mg I/mL)for Group C.The image quality was in-dependently evaluated by two doctors using a 3-point scale (1 -3 score)and adverse effects were recorded.Results (1 )Scores of image quality:all images met diagnostic desire with (2.55±0.5 1)score in Group A,(2.42±0.50)score in Group B,(2.21±0.42) score in Group C.There were statistically significant differences among goups(H =7.790,P =0.022).Kappa values were 0.693 in Group A,0.687 in Group B,0.672 in Group C.(2)Adverse effects:4 cases in Group A(12.12%),3 cases in Group B(9.09%), 2 cases in Group C(6.06%),which showed no statistically significant differences(χ2 = 0.733,P =0.693).Conclusion The three kinds of concentrations of nonionic iodinated contrast media can all be applied in HSG.The higher of iodinated concentration,the better of image contrast.