Is it normal not to hit puberty at age 13?
First off my little brother who is 13 years old is worried because he has not hit puberty yet. So he wanted me two ask. He is 13, his height is 4'11, he weighs about 80 pounds, his penis size is about 3 or 4 inches, he has cubic hair, but few on his legs and face and he has no hair under his arms. Is this normal, and if so when will he start puberty?Any comments would help thanks.