In the treatment of dwarfism and precocious puberty, the height of the child should be measured every month. To obtain an accurate height, the measurement should be done correctly. The measurement should be done with the same measuring tool: the same measuring tape. 2, the same measurement time: due to the human spine vertebral gap by its posture and mobility, as well as changes in the arch of the foot, people’s morning and evening height will be different. It is only comparable when measured at the same time. We usually require measurement in the morning when you wake up. 3.The same way of standing: it is required to take off shoes, stand with heels, legs, hips, waist, back, shoulders and head all against the wall, with chest up and stomach in, eyes flat and jaws not up, in order to measure the highest point of the head. 4, the same person measurement: different people in the measurement, the ruler card pressed on the head is not the same tightness. In addition, the ruler card sometimes loose, to master the length of the ruler card and the ground to maintain parallel. Measurements at home can be done by marking the scale on the wall or posting a paper height ruler and measuring once a month, not frequently, so as not to cause psychological burden to the child. Measure height growth is generally calculated as the average of three months.