Boys generally grow a beard around the age of 14-18, but with some individual variation. Boys generally begin to develop secondary sexual characteristics around the age of 12, and the androgens in the body begin to rise, resulting in the growth of body hair and a change in voice. Beard growth occurs around the age of 14-18. Growing a beard is related to one’s own hormones, and there are individual differences in the exact timing of beard growth. Boys in puberty, to ensure adequate nutrition, moderate physical exercise, adequate sleep, in order to facilitate the healthy development of the child. 14, 15-year-old children are in puberty, the psychological situation will appear rebellious, this time the parents should give care and understanding, to help the child through the rebellious period. If the boy’s development time is obviously abnormal, it is recommended to consult a doctor in time to exclude disease factors.