The average height of 11-year-old girls is 146.6cm, less than 140.0cm is considered short, less than 133.4cm is considered short, which requires a doctor’s judgment or appropriate intervention. 11-year-old girls have an average weight of 36.1kg, less than 29.9kg is considered underweight, less than 25.23kg is considered low weight, which also requires a search for the cause and timely This is also the time to find the reason and correct the weight in time. When the weight is more than 54.78kg, it is considered overweight, and when overweight, it is also necessary to analyze the diet or exercise, and to intervene in time.