The median epithelial and stromal Ki-67 scores in postmenopausal benign polyps (4.67 and 0.045%) were significantly higher in both compartments than in atrophic endometrium (2.41 and 0.01%, p < 0.0001) and significantly lower than in premenopausal benign polyps (11.4 and 0.12%, p = 0.003) and endometrial cancer (8.3 and 0.43%, p < 0.0001) (Table 2; Figure 2). Here, MKI67 is linked to endometrial cancer.