Generally speaking, the height of boys aged three to six should be between 86,3-1 04 and1,and the height of girls should be between 85,4-103 and 2.
The weight of a three-year-old boy should be between10,6 1kg-14 and 74kg, and that of a girl should be between10,23-14 and1kg.
In fact, as long as the baby's height and weight are not too bad and his mental state is good, parents don't need to worry too much.