Menorrhagia: What Causes It & What Can You Do? Menorrhagia is categorized as excessively heavy menstrual flow, long period length, and clotting. Factors: Endometrial polyps Endometriosis Uterine Fibroids Endometrial Hyperplasia… … Read The Full Post posted on June 1, 2016 heavy menstrual periodlong periodmenorrhagiawomen's health