Whether or not a 15-year-old boy with a bone age of 16 can still grow taller depends on whether or not the epiphyses are closed; those who have not yet closed their epiphyses can grow taller, and those whose epiphyses have closed their epiphyses have no possibility of growing taller. Bone age refers to the age of the human skeleton, generally need to be based on X-ray films of the left hand metacarpal bone, phalanges, carpal bones, the lower end of the ulnar radius ossification center to determine the age of the bone can reflect the physical growth of children and adolescents. It is generally recognized that the difference between bone age and the actual age of one year above and below is the normal range, so the bone age of 15-year-old boy 16 is the normal development standard. Boys in this age group are still in puberty, whether they can still grow taller depends on whether the epiphysis is closed or not, if the epiphysis has not yet closed, there is the possibility of continuing to grow taller. During puberty, the endocrine axis of sex hormones in the boy’s body begins to develop perfectly, androgen, growth hormone and other levels rise, which can promote the puberty of the boy to grow taller. When puberty is over, the hormone level in the body decreases and the epiphysis closes, at this time the boy’s height level has been fixed, without the possibility of continuing to grow taller. If the boy is relatively short, in puberty for boys to supplement adequate nutrition, more outdoor sports, to ensure adequate sleep, beneficial to the growth and development of the body.