So i have a small penis and scanty hair there. it hurts because my junior brother has big. mines like a 10 yr old flaccid a little bigger erect. i hav

Doctor can evaluate: One's regular pediatrician, a pediatric endocrinologist, or an adolescent medicine doctor all have experience with the normal development of boys to men. One concern is whether or not there is low sex hormones. Sometimes, a smaller penis is normal or may run in the family. Chromosomal analysis is sometimes done to see if there is a genetic cause. A pediatric urologist can also help.