The child’s obesity standard is judged according to the age group, boys and girls. Specific as follows: 1, first of all, to calculate the child’s body mass index, with the body weight kilograms divided by height, height calculated in meters, and then divided once again, that is, divided by the square of the height, so that the body mass index; according to the body mass index to see what age the child is in the end, for example, in the 7-year-old, 8-year-old, 9-year-old, all the way to 17-year-old period have a table, boys ≥ 19.2, girls ≥ 18.9, which is a standard for 7-year-old children, called obese; 17-year-old boys’ body mass index at 27.8, girls at 27.7, more than this range is also called the age of boys and girls obese; 2, the child’s visceral fat has not exceeded the standard, you can go to the hospital to measure the body composition; 3, whether there is a fatty liver, or dyslipidemia.