Height needs to be measured accurately to be able to monitor whether the child’s growth rate is normal or not. Tips for accurate height measurement are as follows: 1. Make sure that the measurement tools are accurate, that is, the tools used to measure the child’s height at different times are the same tools as much as possible; 2. 4, the choice of measurement time, need to try to be at the same time. For example, in the morning measurement as far as possible in the morning measurement, in the afternoon measurement as far as possible in the afternoon measurement, because for the same child, his height in the morning, noon and evening is different, the difference between the morning and evening height of children even more than 1cm difference.