Central precocious puberty is also called true precocious puberty, which is caused by early initiation of sexual development and central head lesions, such as increased testicular volume and thickening of the penis in boys before the age of 9 weeks, and breast development in girls before the age of 9 weeks. The common causes of central precocious puberty are as follows: 1) Tumor or occupying lesions, such as hypothalamic malformation tumor or brain cysts, etc. 2) Head trauma after surgery or tumor radiotherapy, chemotherapy on the central head. 3) Congenital head diseases, such as hydrocephalus, optic septal insufficiency, etc. 3) Congenital head diseases, such as hydrocephalus, optic septum insufficiency, etc. 4) The development of the head, which is the most important factor in the development of the brain. Once the diagnosis of central precocious puberty is confirmed, it is necessary to actively carry out the examination of bone age and blood hormone level, according to the impact on the child’s height and psychological development, and urgently treat the child to avoid affecting the child’s lifelong height in adulthood.