
20/05/09
During normal menstruation the average woman loses about 2 ounces (60 ml) of blood or less.
If bleeding is significantly heavier, it is called menorrhagia, which occurs in 9% to 14% of all women and can be caused by a number of factors.
Women often over estimate the amount of blood lost during their periods.
However, women should consult their physician if any of the following occurs:
Note: Clot formation is fairly common during heavy bleeding and is not a cause for concern.