The purpose of this work was to correlate the histologic findings and ultrasonographic variables of the endometrium in relation to corporal weight and body fat distribution, in two groups of women: one with posmenopausal uterine bleeding and other under hormonal replacement therapy (HRT). Thirty one posmenopausal women were studied and divided into two groups: I. women with posmenopausal uterine bleeding (n = 19) and II women with HRT (conjugated estrogens and chlormadinone) (n = 12). In both groups transvaginal ultrasound was accomplished the same day previous to the endometrial biopsy (EB). The EB was taken in the group I the day they attended the hospital referring transvaginal bleeding and in group I a statistical significant correlation was found among the corporal weight and histologic findings and among the endometrial refringence and the histologic findings. In group II there was a statistical significant correlation among the body fat distribution and endometrial refringence and among the endometrial thickness and histologic findings. It can be concluded that in women with posmenopausal bleeding the corporal weight influences the histologic findings and the refringence is related with histologic findings, while those under HRT is more important the body fat distribution over endometrial refringence and the endometrial thickness is related with histologic findings.