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Symptoms

    Symptoms of abnormal uterine bleeding (AUB) include:

    • Vaginal bleeding that occurs more often than every 21 days or farther apart than 35 days (a normal teen menstrual cycle can last up to 45 days).
    • Vaginal bleeding that lasts longer than 7 days (normally lasts 4 to 6 days).
    • Blood loss of more than 80 mL (3 fl oz) each menstrual cycle [normally about 30 mL (1 fl oz)]. If you are passing blood clots and soaking through your usual pads or tampons each hour for 2 or more hours, your bleeding is considered severe.

    Most menstrual blood is lost in the first 3 days of the period. So excessive blood loss is possible without having exceptionally long periods.

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    The symptoms of AUB can also be signs of another, more serious condition with similar symptoms. If your abnormal vaginal bleeding is undiagnosed, see your doctor.

      This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

      WebMD Medical Reference from Healthwise

      Last Updated: March 12, 2014
      This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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