What is menorrhagia?

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: 

  • Soaking through at least one pad or tampon every hour for several hours. 
  • Heavy periods that regularly lasting 10 or more days. 
  • Bleeding between periods or during pregnancy. 
  • Spotting or light bleeding between periods is common in girls just starting menstruation and sometimes during ovulation in young adult women, but consultation with a physician is nevertheless recommended.

Note: Clot formation is fairly common during heavy bleeding and is not a cause for concern.