In principle, if a child with advanced sexual development is only given suppressive injections, the growth rate in 1 year will be slower than the original rate, that is, the growth will be significantly reduced, and the growth size is related to genetic factors and the growth size in 1 year at the same bone age. For example, a girl of 8 weeks of age, whose normal development was advanced, was treated with a suppression injection due to the acceleration of her bone age to 11 weeks of age. 11 weeks of age girls have an average height of 146.6cm, and last year the child grew 12cm in one year, once the suppression injection was given, the factor of acceleration of bone age was gone, and combined with the genetic factor and the difference between the child’s current bone age of 11-12 weeks of age, the child grew roughly 5.8cm in one year. Therefore, for children with early sexual development, the treatment is to combine the application of drugs that inhibit sexual development with growth hormone, so that the slow development of bone age is in line with the growth of age, thus achieving the ideal height.