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Menstruation starts at a different time for everybody. A girl can start menstruating between the ages of nine and sixteen - although it is rare to start as early as nine. Once a girl has started her period, it will come once a month for around three to seven days.
At first they can be quite irregular but tend to fall into a pattern as time goes on. There are several factors which can affect the regularity of periods such as pregnancy, extreme weight loss and certain types of Birth Control.
A woman generally has her period for around forty years, but that varies from person to person.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agousually once a month, and it lasts about a week
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What happens to an egg if it is not fertilized by the time it reaches the uterus?
It leaves the body in the process of menstruation.
What happens in the ovaries during menstruation?
abdul ata says, that he doesnt know so no know so understood
Why does menstruation takes place?
The menstrual cycle is a series of hormonal changes in which an egg matures and is released and the uterine lining thickens so that the egg, if fertilized, can implant in it. Menstruation happens when the uterine lining sheds because no fertilized egg has implanted.
Is the egg released during menstruation?
No, the egg isn't released during menstruation. The egg is released during ovulation, which typically occurs two weeks before menstruation, if the egg isn't fertilised then this leads to menstruation.
Why menstruation is related in reproduction?
Menstruation associated with reproduction because menstruation is about cycle of the egg in woman's uterus. Every menstruation, the old egg destroy and came out in the form of blood clots. After that, uterus produce new egg.
If an egg isn't fertillized. what happens to the egg?
it is lost in menstruation
What event happens two weeks before menstruation?
ovulation
What happens to estrogen progesterone levels prior to menstruation?
they increased
What happens during the first stage of the menstrual cycle?
menstruation
Is anal menstruation normal?
Anal bleeding is usually caused by hemorrhoids, not by menstruation. It could also be a symptom of a more serious gastro-intestinal illness, but it is never menstruation, which happens in a different orifice entirely.
What happens Shortly before menstruation?
Blood levels of estrogen and progesterone decrease.
Why do you get menstruation?
It's a normal thing for every female. But some get irregular menstruation which means she might have a problem in her reproductive system which should be checked by a doctor. Why do you get menstruation? It's a sign which means you are ready to be pregnant. And it happens when a girl becomes mature and got through puberty except menstruation.
What happens to the unfertilized eggs in the human female?
They are absorbed and later passed out during menstruation.
What happens to an egg if it is not fertilized by the time it reaches the uterus?
It leaves the body in the process of menstruation.
What the age the menstruation stop?
Menopause usually happens betwenn the ages of 45 and 55.
What is the scientific name for the beginning of the menses?
Onset of menstruation which happens during puberty is termed menarche.
What happens a week after menstrual cycle?
Menstrual cycle refers to the entire reproductive cycle, starting during menstruation - there is no 'after the menstrual cycle' but I think you might mean after menstruation. After menstruation the cycle starts again, typically a woman will be fertile around a week after menstruation so her body will produce fertile cervical mucus and she will ovulate.
