I believe that many girls, like Xiaobian, suffer from the torture of "big aunt" every month. Every time I come to my aunt, I always think, why do women want to come to my aunt? Next, why do girls come to my aunt with Xiaobian.
Why can the girl come menstruation? What advantage does the girl come menstruation have to the body?
When a girl reaches puberty, every 28-30 days, there will be 3-5 days of vaginal bleeding, with a blood volume of about 50 ml. in this way, the month is very regular, which is menstruation. In short, menstruation is a battle of cultivation under the control of sex hormones.
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Why can the girl come menstruation? What advantage does the girl come menstruation have to the body?
In the days before the ovaries produce eggs every month, the pituitary gland secretes a lot of follicle stimulating hormone, and the ovaries produce more estrogen, which makes the endometrium thicken, blood vessels increase and gland secretion increase, just like soil loosening and fertilization. If a fertilized egg comes and grows in this fertile 'soil', it is pregnancy.
As a result, endometrium does not need to be 'cultivated', and menstruation stops. On the contrary, if there is no pregnancy, the endometrial cells will fall off, the blood vessels will shrivel and flow out. But shortly after that, the womb had to prepare for the birth of the next month's egg.
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