Objectives: To assess the reproducibility of hysteroscopic diagnosis in the various types of endometrial hyperplasias and to compare different classifications of endometrial hyperplasia from this point of view. Study Design: 109 endometrial hyperplasias, diagnosed in the last 5 years with hysteroscopy, were all biopsied and had a pathological examination. We tried to estimate the accuracy of hysteroscopy comparing the various classifications of endometrial hyperplasia to the final pathologic diagnosis. Results: Using older endometrial hyperplasia classification, the overall diagnostic accuracy of hysteroscopy was 76% as for the correct type of hyperplasia. Classifying them at hysteroscopy into two categories only, i.e. hyperplasias and neoplasias, gave a more accurate result (90.26%). Conclusions: The newer classification is better from the hysteroscopist’s point of view.