The most commonly used method for calculating genetic height is the CMH method, where boys’ height = (father’s height + mother’s height + 13)/2 and girls’ height = (father’s height + mother’s height – 13)/2. The CMH method was first introduced into China and is the commonly used calculation method in China, boy’s height = (father’s height + mother’s height + 13)/2, girl’s height = (father’s height + mother’s height – 13)/2. In addition, there is also the FPH method, boy’s height = 45.99 + 0.78 × average parental height, girl’s height = 37.85 + 0.75 × average parental height, and girl’s height = 37.85 + 0.75 × average parental height, and girl’s height = 0.75 × average parental height. 0.75 x average parental height. Genetic height is mainly used to calculate the lifelong height of the child in adulthood. If the child’s genetic height is short, parents can intervene in life as early as possible to improve the genetic disadvantage, and when the child’s growth curve deviates significantly from the genetic height, early intervention should be carried out under the guidance of a doctor.