At 15 1/2 years old, a boy’s epiphyses are generally not closed and he can usually still grow. Boys who are 15 and a half years old generally have not closed their epiphyses and can usually continue to grow. Most of the time, the cutoff for height growth can be up to about 20 years of age, and the exact cutoff for growth depends on the individual. The age of 15 and a half is in puberty, which is the second peak of physical development. During this period, it is important to ensure that children have the nutrition they need for growth and development, and exercise appropriately to promote height development. In addition, height development is also related to individual physique, nutrition, genetics and other factors. If you find a boy 15 and a half years old, height growth is relatively slow, parents should carefully observe the child’s situation, if the height continues not to grow, there may be pathological factors such as insufficient secretion of growth hormone, etc., at this time it is recommended that parents go to the hospital in a timely manner, so as to avoid delays in the condition.