Font Size

Dysfunctional Uterine Bleeding

Dysfunctional uterine bleeding is irregular vaginal bleeding that is not caused by a serious medical problem, such as miscarriage or cancer. In most cases, dysfunctional uterine bleeding is related to changes in hormone levels.

Dysfunctional uterine bleeding is:

  • Menstrual bleeding that occurs more often than every 21 days (a normal menstrual cycle is 21 to 35 days long).
  • Menstrual bleeding that lasts longer than 7 days (normally 4 to 6 days).
  • Blood loss of more than 80 mL (3 fl oz) each menstrual cycle [normally about 30 mL (1 fl oz)].

Treatment options include:

Women who have dysfunctional uterine bleeding should be examined for other causes of symptoms and tested for anemia (low red blood cell count).

ByHealthwise Staff
Primary Medical ReviewerSarah Marshall, MD - Family Medicine
Specialist Medical ReviewerKirtly Jones, MD - Obstetrics and Gynecology
Last RevisedJanuary 27, 2012

eMedicineHealth Medical Reference from Healthwise

This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

To learn more visit

© 1995-2012 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

Medical Dictionary