Think “Killer Cramps” are Normal
Internet URL
http://www.endocenter.org/killercramps.htm 
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Description
Dull aching and cramping can occur during menstruation in many women and teens, due to uterine contractions and the release of various hormones, including those known as prostaglandins. Pain is the body's way of signaling that something is wrong. This article provides assessment questions to evaluate one’s risk to having endometriosis.