Change to adult: Puberty means the changes in your body as you grow from a child to an adult. It involves a growth spurt, voice getting deeper, changes in sweat and changes in genitals. Boys usually start puberty between age 9 and 14 yrs. You will see growth of your penis and testicles, hair growth around your private parts and on your face and underarms. If you have questions see your doctor for a check up.
Answered 2/17/2014
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