What is withdrawal bleeding?

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  1. Healthwise
     
    Healthwise answered:
    Withdrawal bleeding is menstrual-like bleeding that occurs when a woman takes cycles of hormone therapy or birth control pills. Women take progestin for several weeks and then do not take progestin for several days; this drop in progestin triggers the bleeding. Withdrawal bleeding occurs during each cycle of hormone therapy about five days after progestin use ends. This is healthy for the uterine lining, which thickens with each hormone cycle, then sheds (sloughs off) in response to the drop in progestin. Withdrawal bleeding can happen when it is not expected. For example, it can come and go after stopping hormone therapy or while taking birth control pills. If withdrawal bleeding continues over a period of time, see your doctor.
    More Related Answers from Healthwise
    Withdrawal bleeding is menstrual-like bleeding that occurs when a woman takes cycles of hormone therapy or birth control pills. Women take progestin for several weeks and then do not take progestin for several days; this drop in progestin triggers... More