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Why does the endometrium become thin after menstruation?After menstruation, why does...

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knak | Student, Grade 9 | eNotes Newbie

Posted June 22, 2008 at 7:53 PM via web

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Why does the endometrium become thin after menstruation?

After menstruation, why does endometrium becomes thin?

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cybil | High School Teacher | (Level 1) Educator

Posted June 23, 2008 at 4:03 AM (Answer #1)

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The endometrium, which is the lining of the uterus, becomes thickened in anticipation of a fertilized egg every month. If one does not implant itself in the endometrium, then the lining is sloughed off by the process of menstruation. The uterus contracts to expel the endometrium; therefore, after menstruation, the lining is thin as the uterus prepares for the new cycle. 

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