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Menarche - Wikipedia

en.wikipedia.org/wiki/Menarche

Menarche is the first menstrual cycle, or first menstrual bleeding, in female humans. From both ... The average age of menarche has declined over the last century, but the magnitude of the decline a...

First Menstruation: Average Age and Physical Signs | OBGYN.Net

www.obgyn.net/sexual-health/first-menstruation-average-age-and-physical-signs

Nov 18, 2011 ... While girls vary in the ages that they are when they start their periods and when the other signs of puberty occur, the order is fairly consistent.

All About Menstruation - KidsHealth

kidshealth.org/en/kids/menstruation.html

The average age is 12, but every girl's body has its own ... Although there's no one right age for a girl to get her period, there ...

Early puberty for girls. The new 'normal' and why we need to be ...

www.cwhn.ca/en/node/39365

Steingraber reveals that good documentation exists over the last hundred or so years to establish that the average age of first menstruation in young white girls ...

What is the youngest age that a girl can start her period? | U by Kotex

www.ubykotex.com/en-us/periods/puberty/what-is-the-youngest-age-that-a-girl-can-start-her-period

But it's not unheard of for a girl's period to start before age 9. ... as young as age 3 , but obviously this is outside the normal range and a serious medical problem.

Puberty Before Age 10: A New 'Normal'? - The New York Times

www.nytimes.com/2012/04/01/magazine/puberty-before-age-10-a-new-normal.html

Mar 30, 2012 ... A girl who has her first period at age 10 will stop growing younger and end up shorter than a genetically identical girl who gets her first period at ...

Puberty Comes Earlier and Earlier for Girls - Newsweek

www.newsweek.com/2015/02/06/puberty-comes-earlier-and-earlier-girls-301920.html

Jan 26, 2015 ... Girls are entering puberty faster than ever, and jeopardizing their health and happiness. ... the average age for an American girl to get her period was 16 to 17. .... Having had an earlier start to puberty, an early-maturing girl ...

Menstruation: What's Normal For Girls - WebMD

www.webmd.com/children/news/20061107/menstruation-whats-normal-for-girls

Nov 7, 2006 ... The committees recommend that doctors view girls' menstruation as a ... That average age hasn't changed much in 30 years, though black girls go ... Typically start two to two-and-a-half years after breast development begins.

Starting periods - Live Well - NHS Choices

www.nhs.uk/Livewell/puberty/Pages/Startingperiods.aspx

When a girl starts her periods it's a sign that her body is now able to have a baby. ... The average girl will get her first period around 12 years old, but it varies from ... See a GP if your periods haven't started buy age 16 (or 14 if there are no other  ...