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...
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.
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 ...
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 ...
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.
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 ...
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 ...
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.
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