The difference in histological grade of endometrial carcinoma in curettage and hysterectomy Objectives: To determine compatibility rate between histological grade of endometrial carcinoma in curettage and hysterectomy. To determine how quantity of material, given by the method of fractional hysterectomy, affects the compatibility between histological grades in the two methods. Study design: The study was structured as a cross-sectional study. Material and methods: The study involved 102 patients with endometrioid endometrial cancer who underwent methods of fractional curettage and hysterectomy. Data regarding the pathohistological status of uterus tissue was obtained from the available medical records. Information on age and advisable clinical diagnoses were obtained from referrals for pathohistological tissue examination. The age of the subjects was determined at the time when the tissue samples were taken for analysis. Data on the amount of material was obtained from the description of macroscopic evaluation of the given material. Results: Most subjects had grade II endometrioid endometrial cancer (47.1 % and 50 %). Most of the respondents had a medium deficient material obtained by fractional curettage (40.2 %). There was no statistically significant difference between the histological grade determined after the fractional curettage and hysterectomy. There was no statistically significant deviation in histological grade in the sample obtained by fractional curettage and hysterectomy depending on the amount of material in fractional curettage. Conclusion: The concordance in the grade of endometrial cancer in samples obtained by the fractional curettage and hysterectomy is statistically significant. The correspondence is higher in higher tumor grade (III), and lower in lower tumor grade (I, II). The amount of material did not affect the grade deviation in the sample obtained by fractional curettage and hysterectomy.