The aim of this study was to investigate the useful of colour flow doppler (CDF) and hysteroscopy to determine the endometrium status in endometrial cancer patients who were treated by radiotherapy alone. The study group comprised 33 patients. There were hysteroscopy and CDF performed in obligatory regular periods. High useful of hysteroscopy was confirmed. It appeared 89% of sensitivity and 91% of specificity. CDF sensitivity was 69% and specificity 75%. Absence of the flow signal in endometrial tissue was correlated with no of malignant pathology in uterus. Pulsatility and resistance indexes in CDF were not characterised for histopathology status of endometrium.