One hundred forty three patients underwent hysteroscopy for abnormal uterine bleeding from January 1993 through December 1994. Sixty patients were postmenopausal. All but 3 of the procedures were performed on outpatient with no significant complications. Three groups could be identified on the basis of endometrial features (color, vascularity, thickness, necrotic areas): 1) negative for cancer, 2) possible or suspect (low or high risk), 3) carcinoma. Biopsy indicated cancer in one of the 16 doubtful cases, and in all (5) of the hysteroscopically diagnosed cancers. Outpatient Hysteroscopy successfully substitutes D&C (dilatation and curettage) for early diagnosis of endometrial cancer.