Curve method of predicting adult height: According to the current bone age and height at the time of filming to find out the intersection of the two, extend the curve near the intersection, according to the pattern of change of the curve extension, to find out the corresponding height of the corresponding position at the age of 18 years old, that is, the curve method of predicting life-long height under normal growth conditions. According to the age, the height is below -2SD curve (girls can be diagnosed as short stature (dwarfism) when they are within or below the light yellow area of their own height curve. Obesity is diagnosed when the weight is above the +2SD curve for the corresponding age (girls are within or above the light yellow area of this weight curve). Note: 1. Since the bone age of normal people is similar to their age, the prediction of height is relatively accurate only when the bone age is similar to their age, and when they have normal diet, sleep, and exercise, and do not have any obvious diseases of growth and development. For those whose bone age is significantly younger than their age, the curve method is often not low enough to predict height and is less reliable. For those whose bone age is significantly greater than their age, the accuracy is also limited, but the accuracy is slightly better than that of those whose bone age is less than their age. 2. Prediction of adult height is based on the current bone age and height, according to the normal growth pattern to predict future height. For those who are currently short, since they failed to grow according to the normal growth pattern before, it is very unlikely that they will be able to grow according to the normal growth pattern from the time of prediction without treatment, and it is likely that they will continue to deviate from the normal growth curve step by step, that is to say, it is likely that their actual adult height will be shorter than the predicted height. 3. After the menarche of girls, due to the difference in growth regulation with the pre-menarche, if the bone age is small at the time of menarche, the predicted height according to the growth curve may be slightly higher, but the reliability is low. After a girl’s normal menarche, she can generally only grow another 4~8CM, most of them are around 5CM (of course, we can’t rule out the very few who are larger than 8CM or smaller than 4CM).