PUBERTY & DEVELOPMENT INFORMATION
The Facts:
Average Start:
11 Years Old
For girls, puberty usually starts
around age 11.
But it can start as early as
age 6 or 7.
Average Start:
12 Years Old
For boys, puberty begins
around age 12.
It can start as early
as age 9.
Puberty is a Process
It occurs for several years.
Average End:
14 Years Old
Most girls finish puberty by age 14.
Average End:
16 Years Old
Most boys finish puberty at age 15 or 16.
Precocious Puberty or Early Puberty
A study published in Pediatrics in 2010 found that among a population of 1,200 American girls,
about 23 percent of African-Americans,15 percent of Latinas and 10 percent of Caucasian girls had begun
puberty (marked by breast development) at age 7.
More Resources about precocious puberty: