it is a hormonal change/puberty that girls go through within 10-16 age range
its when blood comes out of ur vagina and u need to wear pads, it happens every month. It happens for 3-7 days
2006-07-01 13:18:24
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answer #1
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answered by Preeya 5
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During the menstrual cycle, the sexually mature female body builds up the lining of the uterus with gradually increasing amounts of estrogen, and when this hormone reaches a critical level, estradiol is produced, and shortly thereafterward there is the stimulation of the ovaries with Follicle Stimulating Hormone, and luteinizing hormone. Follicles begin developing, and within a few days one "matures" into an ovum or egg. The ovary then releases this egg, (or occasionally two, which might result in dizygotic, or non-identical, twins) at the time of ovulation. The lining of the uterus, the endometrium, peaks shortly there afterward in a synchronised fashion. After ovulation, this lining changes to prepare for potential conception and implantation of the fertilized egg to establish a pregnancy. The hormone progesterone rises after ovulation, and peaks shortly thereafter.
If fertilization and pregnancy do not ensue, the uterus sheds the lining, culminating with menstruation, which marks the low point for estrogen activity. This manifests itself to the outer world in the form of the menses (also menstruum): essentially part of the endometrium and blood products that pass out of the body through the vagina. Although this is commonly referred to as blood, it differs in composition from venous blood. Menstrual cycles are counted from the beginning of menstruation, because this is an outside sign that corresponds closely with the hormonal cycle. Menses, or bleeding and other menstrual signs may end at different points in the new cycle.
Common usage refers to menstruation and menses as a period. This bleeding serves as a sign that a woman has not become pregnant. (However, this cannot be taken as certainty, as sometimes there is some bleeding in early pregnancy.) During the reproductive years, failure to menstruate may provide the first indication to a woman that she may have become pregnant. A woman might say that her "period is late" when an expected menstruation has not started and she might have become pregnant.
Menstruation forms a normal part of a natural cyclic process occurring in healthy women between puberty and the end of the reproductive years. The onset of menstruation, known as menarche, occurs at an average age of 12, but is normal anywhere between 8 and 16. Factors such as heredity, diet and overall health can accelerate or delay the onset of menarche.[1]
The condition precocious puberty has caused menstruation to occur in girls as young as 8 months old. Some women experience their first period in their late teens. The last period, menopause, usually occurs between the ages of 45 and 55. Deviations from this pattern deserve medical attention. Amenorrhea refers to a prolonged absence of menses during the reproductive years of a woman for reasons other than pregnancy. For example, women with very low body fat, such as athletes, may cease to menstruate. The presence of menstruation does not prove that ovulation took place; women who do not ovulate may have menstrual cycles. Those anovulatory cycles tend to take place less regularly and show greater variation in cycle length. In addition, the absence of menstruation also does not prove that ovulation did not take place, because hormone disruptions in non-pregnant women can suppress bleeding on occasion.
2006-07-01 20:17:54
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answer #2
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answered by christine 3
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A period is a thing that happens to all women weather we like it or not, just except it when it does come along, it will get easier to deal with as life goes on.
2006-07-01 20:21:55
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answer #3
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answered by Anonymous
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Maybe you should talk to a adult, such as your mom or aunt, to learn more about periods/menstruation.
Haven't you had health class in school?
2006-07-01 20:16:40
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answer #4
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answered by Anonymous
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you`ll get it soon but ask an adult/check out the site below if your a kid
2006-07-01 20:29:40
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answer #5
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answered by ♥♫Music Mist♫♥ 3
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well, it is the thing that happens to you that make you a woman.
No one has taught you??
2006-07-01 20:17:27
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answer #6
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answered by NS42day 4
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try sitting down and talking to your mother about it.
2006-07-01 20:16:58
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answer #7
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answered by MODEL 2
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ask ur mom
2006-07-01 20:19:00
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answer #8
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answered by memememe 3
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of you do not know wat a period is you are to young or you stupid
but it is wen you go pee and there is blood in your pee and that means you are through puperty and you get mood swings
2006-07-01 20:16:08
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answer #9
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answered by loveness 2
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If you are not developing boobs yet you should not know!
2006-07-01 20:16:27
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answer #10
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answered by Anonymous
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