Question

what is mean by period why came​

Answer 1

A period is a release of blood from a girl's uterus, out through her vagina. It is a sign that she is getting close to the end of puberty. There is a lot to learn about periods.

Explanation:

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Answer 2

Answer:

If the egg is not fertilized, your body no longer needs the thicker lining of the uterus, so it starts to break down and is eventually expelled, along with some blood, from your vagina. This is your period, and once it's over, the process starts all over again.