We often hear some old people say: this child is “late”. What do we mean by “late growth”? In medical terms, it means that the child’s puberty comes later than normal children, normal boys enter puberty at the age of 12, normal girls enter puberty at the age of 11, while “late growing” children may have puberty start at the age of 14 or even 15 or 16. The result is that normal children do not grow much at the age of 15, while the late growing children only began to puberty “growth”, so even if the front is short, the back can still catch up. But the child is not “late growth” based solely on the parents according to their own growth history and make an empirical judgment is not enough, because each child’s growth environment, nutrition supply, etc. and the previous generation is different, the growth curve is not quite follow the growth law of the previous generation; and in recent years our country ” Additives milk powder” “45 days chicken” and other food safety issues have emerged, resulting in children’s average age of puberty start significantly earlier; so only based on parents’ empirical judgments do not pay attention to the child’s growth status is irresponsible. It is best to leave it to an experienced doctor to determine if it is “late growth” and not to delay the child by treating it as “late growth”.