Question

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why menstruation occurs​

Answer 1

Answer:

Since the ovary releases a un fertilised egg every month.Incase the egg is not fertilised by the sperm menstruation occurs to remove the unfertilsed egg in the form of blood and mucos..

Answer 2

$\bf\large\underline\red{Answer:-}$

$\bf\large\underline\blue{Menstruation :-}$

➤ 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 pregnancy does not occur, the lining is released in what is known as menstruation.

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