Adolescent boys growing a beard is a normal physiological phenomenon, but may also be due to eating too much food containing hormones lead to easy to grow a beard, the specific situation with the genetic factors and personal constitution. Growing a beard is a secondary sexual characteristic of adolescent boys and is a normal physiological phenomenon. Due to the different hormone levels in each individual, the speed of beard growth is also different. If endocrine diseases or eating hormone-containing foods, such as royal jelly, chicken meal, anti-seasonal vegetables and fruits, etc., lead to premature puberty and early beard growth, parents need to bring their children to the hospital in a timely manner, to determine the cause of the disease and give treatment. It is recommended that children have any discomfort in time to consult the doctor, and actively cooperate with the doctor’s treatment. Do not blindly take drugs, so as not to cause adverse consequences.