True precocious puberty is the process of sexual development that is consistent with normal sexual development, except that the time is advanced to the point of maturity, when girls can ovulate and conceive and boys can ejaculate. Among them, idiopathic true precocious puberty refers to true precocious puberty that is not caused by other diseases, and most of the precocious puberty treated at present is idiopathic true precocious puberty. The causes of pseudogenital precocious puberty are complex. Intracranial diseases such as pituitary tumors, craniopharyngioma, hydrocephalus; testicular and ovarian tumors; polycystic ovaries: adrenal cortical hyperplasia; tumors in other parts that can produce gonadotropins and sex hormones, etc. The appearance of secondary sexual characteristics is only part of the clinical manifestations of these diseases, and the important issue is the primary disease. These diseases first require treatment of the primary disease, some require surgery, some require special treatment, and some are very difficult to treat, so early detection, early diagnosis, and targeted treatment are needed. There is another condition, medically known as partial precocious puberty, in which these children show only a part of their secondary sexual characteristics, such as simple early breast development, simple early pubic hair development, and simple early menstruation, unlike true precocious puberty, which goes through a continuous development process until sexual maturity. This condition also belongs to the category of pseudo-precocious puberty, which usually does not require special treatment but needs follow-up. Although most partial precocious puberty can subside or not develop on its own, some are early manifestations of other diseases, and some are transformed into true precocious puberty later, so they need to be observed and followed up. Children with true precocious puberty usually show the following signs: accelerated growth, increased appetite, accelerated height growth, some grow 8-10 cm a year. Development of secondary sexual characteristics. Girls usually show breast growth, nipple and areola growth, followed by pubic hair and armpit hair, menstruation, irregular menstruation and no ovulation at the beginning, and then gradually regular and ovulation, and can be fertilized and pregnant. In boys, initially the testicles and penis grow up, later there may be erection of the penis, growth of pubic hair, armpit hair, acne, thickening of the voice, and seminal emission. Medical examination shows that the bone age is overt, the girl’s uterus and ovaries grow, the boy’s testicles grow, and gonadotropins are elevated. The treatment of precocious puberty and early development falls under the category of elective treatment. When a child with precocious puberty goes to the doctor, the doctor needs to make a detailed consultation to understand the growth and development process of the child; a careful physical examination to clarify the current developmental status of the child; do the necessary laboratory tests, films, ultrasound, laboratory tests, etc., to exclude precocious puberty caused by diseases, and after confirming the diagnosis of idiopathic true precocious puberty, then fully communicate with the parents, and on this basis, determine whether to control the treatment and the plan to control the treatment.