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" &amp;quot;I&amp;#039;ve had my period for three weeks now, and it&amp;#039;s just as heavy now as it was a week ago. Is something wrong?&amp;quot; Collette, 15, Fairfield, CT Even though irregular periods are common the first couple of years you have your period, it&amp;#039;s really important to talk to your doctor if your periods are lasting longer than seven days.   Some medical problems (such as hormone imbalances or clotting disorders) can make you bleed heavily or for a long time. Not only can prolonged or heavy bleeding be a sign of something else going on, it can also lead to anemia, and you don&amp;#039;t want that. An evaluation by a doctor can help determine the cause of any possible problems. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.seventeen.com/health/q-and-a/a2705/why-wont-my-period-end/>