Puberty usually hits boys later than girls, at an average age of 11. But according to new research published in the journal Pediatrics, U.S. boys are now experiencing the first signs of sexual maturation — genital growth, testicular enlargement, and the appearance of pubic hair — roughly 6 months to 2 years earlier than boys at similar ages just a few decades ago.
Pediatricians now find that the earliest stage of male puberty occurs, on average, at age of 10.14 years among non-Hispanic whites, at 10.4 years among Hispanics, and at just 9.14 years among African Americans.
“All parents need to know whether their sons are maturing within the contemporary age range, but, until now, this has not been known for U.S. boys,” pediatrics researcher and study author Richard Wasserman said in a statement.
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