A train speeding on the Beijing-Guangzhou line, should arrive in an orderly and punctual manner at the stations along the line. Otherwise, whether it is early or late, it will disrupt the original plan of the passengers and bring a lot of inconvenience to their travel; by the same token, sudden precocious puberty or delay in the development of youth will bring adverse effects to the life of the affected children. When a child suffers from precocious puberty, the innocent child will carry a heavy burden of thought prematurely, and the child will easily develop inferiority complex or anxiety due to the different physical appearance from his peers, which will affect the child’s study and get along with his classmates, and will have a long-lasting negative impact on his mental health in adulthood. In addition, because of their young biological age, shallow social experience and poor self-control, boys are prone to sexual aggression and girls are prone to sexual assault; their bone age significantly exceeds their biological age, which significantly reduces their growth potential. Even though the child’s current height is higher than that of a normal child of the same age, his or her growth cycle is significantly shortened, resulting in a significant reduction in the adult height he or she should have achieved, resulting in a shorter final height. More importantly, a small percentage of children with true precocious puberty may be caused by intracranial tumor compression, which, if not treated in a timely manner, may endanger the child’s tender life.