MedlinePlus Medical Encyclopedia: Bleeding between periods

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Bleeding between periods

Normal menstrual flow lasts about 5 days and produces a total blood loss of 60 to 250 ml and occurs every 28 days. There are several causes of abnormal vaginal bleeding and a careful exam by a healthcare provider is frequently the best way to sort out the source of the bleeding.

Update Date: 5/23/2006

Updated by: Audra Robertson, MD, Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, MA. Review provided by VeriMed Healthcare Network.

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