The normal height of a one-year-old baby boy is 71.5 to 81.8cm and that of a baby girl is 70.0 to 80.2cm.
Height refers to the vertical distance from the top of the head to the bottom of the foot, and is more obviously affected by genetic and endocrine factors. Short-term nutritional fluctuations and diseases do not cause changes in height. The 1st year after birth is the period of fastest height growth, the 1st growth spurt. The height growth in the first 3 months is approximately equal to the height growth in the last 9 months of the 1st year. Puberty is the 2nd growth spurt.
Generally speaking, there are some differences between male and female 1-year-old babies, with the height range of male babies between 71.5 and 81.8cm, and the height range of female babies between 70.0 and 80.2cm. Due to genetic and endocrine factors, there are individual differences in height.
This value is for reference only, as there are large variations between different babies, and continuous observation should be made to fully understand the changes in children’s height before a comprehensive consideration can be made.