There are two ways to determine whether a child is short: 1. Compare with the average height of children of the same age. For a child aged 2 to 10 years, his average height is (age x 7 ten 70) centimeters. If the height is lower than the average height of children of the same age 5-10 centimeters, that is, half a head shorter than children of the same age, it is short. 2, see how much the child grows each year. If the child grows less than 7 centimeters per year before the age of 3 and less than 5 centimeters per year after the age of 3, the child is considered short. In the child’s growth process, parents should measure the child’s height at least once every six months, if you find that the child is short in stature, you should go to the pediatric shortness clinic in the hospital as soon as possible for examination, early diagnosis and timely treatment. Usually a person’s height is most affected by the genetic factors of the parents, but the influence of external factors should not be underestimated.