Objective : To evaluate the Role of Diagnostic Hysteroscopy in Infertile Women With Normal Hysterosalpingogram. Methods : We performed a prosepective study on 140 women attending Benha university hospitals .women underwent a diagnostic hysteroscopy .All women were having normal Hsg,hormonal profile,and their husbands were having normal semen. Results: Hysteroscopy revealed abnormalities in 48 women (34.3 %) ..and 56 hystroscopic abnormalities ( Endometrial Polyp, Cervical Polyp, Submucous myoma, Cervical stenosis, Intrauterine adhesions, Chronic endometritis. Septum, Hypertrophic endometrium. Atrophic endometrium , Cornual inflammation and Cornual fibrosis). It revealed that hysteroscopy may be a part of routine infertility work up . Conclusion: We can conclude that HSG is still considered the first line diagnostic tool in infertility work up, however, in infertile women with normal HSG, hysteroscopy is recommended 6 months following the procedure of HSG.