The development of pubic hair after the age of 8 is generally normal. Precocious puberty generally refers to the early development of secondary sexual characteristics, when the appearance of secondary sexual characteristics in the normal age of sexual development (the average) before two standard deviations for precocious puberty. In Europe and the United States, the earliest age limit for girls’ sexual development is 8 years old. If a girl develops secondary sexual characteristics before the age of 8, such as growing pubic hair, breast development, menstruation, etc., it may be a sign of precocious puberty. It is necessary to pay attention to a reasonable diet, eat seasonal fresh vegetables and fruits, appropriate exercise, ensure good sleep, and avoid the intake of undesirable supplements and hormone-containing foods. If you find that your child has the possibility of precocious puberty, it is best to go to an endocrine specialist, and let the doctor determine whether your child’s development is normal. If necessary, the local doctor, improve the bone age film, hormone levels and other related examinations, if there is precocious puberty, may need early intervention, to avoid affecting the child’s future height development and the emergence of psychological problems.