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Okay, The reason being because, Girls have eggs, And when sperm finds these eggs we become pregnant. But if we dont use these eggs. We have to get rid of them. We do this by having a 5-7 day period a month.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoMenstruation - having periods - is part of the female reproductive cycle that starts when girls become sexually mature at the time of puberty.
During a menstrual period, a woman bleeds from her uterus (womb) via the vagina. This lasts anything from three to seven days. Each period commences approximately every 28 days if the woman does not become pregnant during a given cycle.
Menstruation is a very complicated process involving many different hormones, the woman's sex organs and the brain.
A woman's internal sex organs consist of two ovaries, the Fallopian tubes, the uterus (womb) and the vagina. The ovaries contain the eggs with which the woman is born and, during each period, a single egg will usually ripen and mature due to the action of hormones circulating in the bloodstream.
When the egg is mature it bursts from the ovary and drifts through the Fallopian tube down into the uterus. The lining of the uterus - the endometrium - has been thickened by the action of hormones and made ready to receive the fertilised egg.
If the egg is fertilized and the woman becomes pregnant, it will fasten itself onto the endometrium. If the egg is not fertilized, however, resultant hormonal changes cause the endometrium to slip away and menstruation begins.
Menstrual discharge is composed of the endometrium itself, together with a little fresh blood caused by the breaking of very fine blood vessels within the endometrium as it detaches itself from the inside of the uterus.
The amount of blood lost due to the normal monthly period is usually less than 80ml.
Wiki User
∙ 11y agothey are not bleeding. They are having their period. SEARCH IT ON WIKIPEDIA OR ASK YOUR MOTHER
Wiki User
∙ 11y agoit's called menstruation !
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Women bleed every month due?
because they deserve it
Who is more likely to develop diabeties boys or girls?
Girls, why? cause God hates them and makes them bleed out there fingy each month and if that isn't hatred i don't know what is :) Girls, why? cause God hates them and makes them bleed out there fingy each month and if that isn't hatred i don't know what is :)
Do girls bleed every time they have a period and is she a virgin?
Yes, they always bleed when they have a period. Virginity has no relationship to the menstrual cycle.
When do girls produce an egg?
Every month
Do all girls bleed when there cherry gets popped?
Not always, Every girl is different.
Can pigs internally bleed?
if u mean they bleed every month no if u mean they are in heat yes they bleed if u are talkin about somethin elese than IDK
How often do guys get periods?
Every month like girls do.
Do girls bleed because of body changes?
Females bleed because their body tends to develope more so you go through changes in the order of your body. Females have a cycle to get rid of all the access waste and junk that your body consumes month after month.
Do girls really have to get a period every month?
Yes unless they get a contraceptive that stops it.
Do you bleed a lot if you leave the two month injection?
Is it normal to bleed a lot if you leave the two month injection
Do girls bleed out there butts?
no
Is it normal to have a period twice a month and bleed heavy and when have a bowel movement you bleed?
is it normal to have a period twice a month and bleed when you had a bowel movement or and bleed heavy and think you pregnant is it because of sex but doing in rectum
