Abnormal uterine bleeding (AUB) is irregular vaginal bleeding that is not caused by a
serious medical condition.
Normally one of your
ovaries releases an egg during your
menstrual cycle. This is called ovulation. Most women who have abnormal uterine
bleeding get it when their ovaries don't release an egg. This can be caused by
abnormal hormone changes. When your hormone levels are out of
balance, they can affect the
lining in your uterus, causing bleeding. Abnormal
uterine bleeding is common before age 20 and after age 40.
It is possible that the main title of the report Graves' Disease is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
Some women have abnormal uterine bleeding
even though they ovulate. Experts don't fully understand this type of vaginal
bleeding. It may be caused by changes in certain body chemicals.
In this article
This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Medical Reference from Healthwise
March 12, 2014
This information is not intended to replace the advice of a doctor.
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