A height of 128cm for an 8 year old child is generally not considered short and is normal. Height refers to the vertical distance from the top of the head to the soles of the feet.The growth rate of height tends to stabilize after 2 years of age and before puberty, about 5~7cm per year.Normally, the standard height range of 8-year-old children is 124.5~136.9cm, and if the height is 128cm, it belongs to normal. However, it should be noted that genetic and environmental factors cause individual differences in growth and development, so the normal range of children’s standard height is a rough estimate of growth, and should not be taken as an absolute standard for physical growth evaluation. The evaluation of a child’s growth and development should be based on continuous observation of the child’s changes, a comprehensive understanding of the child’s growth and development, and the evaluation should take into account individual differences in order to make a correct judgment.