why does menstruation occurs?plzz hlp me
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it is a part of humans secondary sexual characteristics . due to it our adolesence starts
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When the egg is not fertilised by sperms , Then the uterus lining meant for implantation of zygote is not required. Hence, It breaks down and releases in the form of blood and mucous through the vagina.This process lasts for 2-8 days and is known as menstruation or mentrual cycle. This is the reason why menstruation occurs in females..
When the egg is not fertilised by sperms , Then the uterus lining meant for implantation of zygote is not required. Hence, It breaks down and releases in the form of blood and mucous through the vagina.This process lasts for 2-8 days and is known as menstruation or mentrual cycle. This is the reason why menstruation occurs in females..
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