“…A retrospective analysis on 27,973 patients revealed endometriosis to be inversely proportional to CKD (crude HR 0.65, 95% CI 0.53-0.81, p < 0.001) [11]. However, in another similar study designed to determine the prevalence of organic causes of abnormal uterine bleeding in this group of patients exposed to unopposed estrogen, only 2 of 8 patients (25%) with chronic renal failure had endometrial lesions while 44 of 131 patients (33.6%) had either endometrial polyp, simple or atypical endometrial hyperplasia or endometrial carcinoma (p > 0.05) [12].…”