Early maturity of girls mainly has the following symptoms: first, there will be breast development, and will also grow armpit hair and pubic hair, with the age of slowly growing in the human body under the action of hormones, nipple and areola color slowly deepen, labia minora area and hyperpigmentation. Secondly, the height will also suddenly increase, in addition to the abdomen and buttocks fat accumulation phenomenon. Third, precocious puberty is the rapid development of the uterus and ovaries. If a girl has very obvious symptoms of precocious puberty, then parents must give their children more psychological comfort and encouragement, and never criticize the child, otherwise the child may be subjected to more psychological pressure.