When Does Armpit Hair Start Growing? Average Age & Factors

The average age for the start of armpit hair growth varies depending on individual factors like genetics, ethnicity, and overall development, but it generally begins during puberty.

* For girls: Armpit hair typically starts to appear between the ages of 10 and 14.

* For boys: It usually starts a bit later, between the ages of 12 and 16.

It's important to remember that these are just averages, and it's perfectly normal for individuals to develop armpit hair earlier or later than these ranges.