Ans. is a i.e. Progesterones Guys, It is very impoant to clear your facts on Management of DUB and Polymenorrhea in different age groups. You must read the question very carefully as management of Polymenorrhea and DUB is different. First lets understand the basics regarding Polymenorrhea and DUB. Polymenorrhea : It is cyclical bleeding which is normal in amount but occurs at frequent intervals (< 21 days). Polymenorrhea occurs in ovulatory bleeding where the ovary goes through its normal cycle but does it more quickly. The acceleration mainly affects the follicular phase of menstrual cycle. Physiological Following menarche Preceeding menopause Pathological Chronic congestion of ovaries as in : chronic salpingo-oophiritis DUB : DUB is defined as a state of abnormal uterine bleeding without any clinically detectable organic pelvic pathology. It is mostly anovulatory (80%) i.e., there is deficeincy of progesteron,.so it can be treated successfully with progesterone, Also know : In anovulatory cycles : If progesterone is commenced during an episode of heavy bleeding -- Progesterone of choice is Norethisterone acetatedeg as it has better hemostatic action whereas for cyclical maintenance therapy dydrogesterone or medroxy progesterone acetate is preferred.