Entering puberty at eight in the US is generally considered normal for some children. Sometimes in second or third grade there is under arm odor, and for girls breast development which may stop or continue. It is best to have your pediatrician evaluate your son's physical development to establish if there is a concern about his growth. However, ADHD and dyspraxia have nothing to do with puberty.
Wayne Yankus, MD, FAAP
expert panelist: pediatrics