Question

How many time is done mensuration

Answer 1

Menstruation occurs once in every 28 days if the egg is not fertilized.
It is a bit irregular when it first begins(at the age of 10-12).

Answer 2

Hello!  dear,

Your answer goes like this ...

1.In females the reproductive age starts at puberty and continues to                        approximately 45 to 50 years.
2.If fertilization does not occur,The egg and the lining of the uterus are shed          accompanied by Blood.
3.This bleeding lasts for 4 to 6 days:That is known as Mensuration and also         as Period.

Thank you dear,

Hope It helps.