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Why does menstruation occur

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Why does menstruation occur
  • 1 answers

Kritika Trehan 7 years, 7 months ago

The menstrual cycle occurs due to the rise and fall of hormones. This cycle results in the thickening of the lining of the uterus, and the growth of an egg, (which is required for pregnancy). ... If pregnancydoes not occur, the lining is released in what is known as menstruation.

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