why the wall of Uterus ruptured during periods?
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when there is no fertilisation the lining formed in order to nourish the fertilised egg gets ruptures
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If ovum don't fuse with egg then the blood vessels in the inner lining of uterus wall gets reptured. Then the reptured walls of blood comes from urine this is known as mensturation.
DeePak123321:
what is the connection between egg and blood vessels?
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