Several reasons: With a period the uterus makes a chemical called prostaglandins and they cause cramping. So is a person makes more they'll have more pain. Other women have bad pain when the periods are heavy, and if the bleeding lighter then less pain. Depending on the cause there are treatments.
Answered 3/26/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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