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Elementary School-Aged Kids
Reply to "9yo with PMS-type symptoms?"
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[quote=Anonymous][quote=Anonymous]NP. It's not. Puberty has moved earlier in this generation and lasting longer. 8 is a normal age to start (it's a big range) and it starts with the emotional rollercoasters. At age 10 fifth grade a decent fraction of girls get their periods, as in, you wouldn't feel alone if you were one of those girls. I've been told this by our endo. [/quote] Yes it has, but it's still extraordinary to get a period at 9. The study below says .6% start at 9 or younger in the 60s, and 1.4% in 2010s. https://hsph.harvard.edu/news/menstrual-periods-are-arriving-earlier-for-younger-generations-especially-among-racial-minority-and-lower-income-individuals/ Among participants born from 1950-1969, the average age at menarche was 12.5 years, and the rates of early (under 11) and very early (under 9) menarche were 8.6% and 0.6%, respectively. Among participants born from 2000-2005, the average age of menarche was 11.9 years, and the rates of early and very early menarche were 15.5% and 1.4%, respectively.[/quote]
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