There is no exact method of calculating the genetic height of girls, and some scholars have proposed several commonly used calculation methods, such as FPH and CMH. The growth of height is affected by genetic factors, endocrine levels, long-term nutrition, diseases and other factors, so genetic height can only be used as a reference. FPH: girl’s height = 37.85 + 0.75 x (father’s height + mother’s height) ÷ 2 ± 5.29 cm; CMH: girl’s height = (father’s height + mother’s height – 13) ÷ 2. There is also: girl’s height = (father’s height x 0.923 + mother’s height) ÷ 2. As genetic height is only the genetic potential of children’s height, so it is not the final height of the exact child, usually let the child to do a balanced diet, participate in more outdoor sports, to promote height growth.