ANATOMY

Detailed explanation-1: -Some of the changes at puberty are common and observed in both males and females such as thick hair growth in the armpits, hair growth on the hands and legs, etc.

Detailed explanation-2: -The growth and development that occurs during puberty is prompted by changes in the levels of certain hormones in your body. Hormonal changes begin in the mid-primary school years, but puberty properly starts at around 10 years for girls and 11 years for boys.

Detailed explanation-3: -Boys and girls both begin to grow hair under their arms and their pubic areas (on and around the genitals). It starts out looking light and thin. Then, as kids go through puberty, it becomes longer, thicker, heavier, curlier, and darker.