11 and a half years old boys will have hair?

11 and a half years old boys pubic hair is not, depending on the growth and development and genetic factors.

If the parents of early sexual development or boys grow faster, in 11 and a half years old has entered puberty, pubic hair will generally, but also accompanied by the development of reproductive organs. But if the parents of late sexual development or boys grow slowly, 11 and a half years old has not yet entered puberty, pubic hair will not.

Parents need to pay attention to the child's growth and development, regularly take the child to a physical examination, but also to develop good living habits, reasonable diet, maintain a balanced nutrition. Appropriate participation in physical exercise, regular rest, enhance immunity.