Emphasis on the dangers of idiopathic (true, central) precocious puberty 1. In children with idiopathic (true, central) precocious puberty, the most important danger is that the short growth period may result in a shorter adult height. Due to premature onset of puberty, premature acceleration of physical growth, early epiphyseal fusion, shortening of the growth period, and early cessation of growth. This results in a lower final adult height than that of children of the same age who develop according to normal puberty. Take girls as an example: normal girls grow about 20~25CM throughout puberty, normal girls start to develop when their height reaches or close to 140CM around 10, and their adult height may reach or close to 160~165CM. 2.Premature sexual maturity Although children’s sexual characteristics develop earlier, their psychological and intellectual development levels are still at the actual age level. Premature appearance of sexual characteristics and development of reproductive organs can lead to psychological disorders in immature children, low self-esteem, social withdrawal and other problems. Premature menarche of girls also brings many inconveniences to life, and even affects reading and studying in serious cases. 3, premature sexual maturity, and the lack of self-protection, may also be more vulnerable to harm. Such as early pregnancy, sexual assault, premature masturbation and other puberty problems. 4.Part of precocious sexual maturity, especially in boys and girls under 6 years old, is due to the appearance of tumors in the body, which can secrete substances similar to sex hormones, and sometimes when the tumor is still small, the amount of sex hormones it secretes is already large enough to cause sexual development, such as hypothalamic malformation tumor, and we found a case in which the smallest boy was only 18 months old, so children with precocious sexual maturity must see a doctor in time and have early Therefore, children with precocious puberty must see a doctor for early diagnosis and treatment.