I have a nine year old daughter who is big for her age. I am concerned about her size and the fact that she seems to be maturing physically a lot faster than I did at her age. She already wears a bra and has pubic hair and underarm hair. I am worried about her changing body. The changes in your daughter are, as you already know, the signs of puberty.
Precocious puberty is nine times more common in girls than in boys.
The first sign of puberty in girls is the development of breasts. Most of the time, we are unable to define the cause of precocious puberty, but this early development causes no physical problems with the child, however, the emotional strain it can place on the child and family can be considerable. Your daughter's apparent advanced stage of puberty suggests that she may have begun puberty prior to eight years of age. Because of this and the fact that she seems to have deviated from the age at which you went through puberty, I suggest you have her evaluated by her physician. Most likely she is just one of the girls who happens to go through puberty a little early, however, there are some hormonal disturbances that could be causing these changes.