Children’s precocious maturity generally have the following symptoms: 1, abnormal early psychosexual development, such as the problem of early love, abnormal concern about the problem of love, for the opposite sex has a strong sense of curiosity; 2, may cause sexual maturity or early development of the sexual organs of the problem, such as early development of the secondary sexual characteristics, the development of the girl’s breasts, the growth of the boy’s penis as well as testicular growth and so on. If such a problem occurs, it may be caused by endocrine abnormalities; 3, it may be psychologically over-mature, such as always thinking about adult problems, worrying about adult burdens, such as always thinking about how to make money, always talking about chicken soup, or always worry about national issues, etc., if there are the above symptoms, it may be too precocious.