Thank you for your query. These are symptoms of premature adrenarche. That means that her adrenal glands
are secreting hormones a little too early.That is why she is developing hair growth at these areas like a mature woman. These features alone does not warrant any treatment other than proper counselling
to the child and judicious assurance. But if she starts having periods before the age og 8yrs along with this the she needs investigations like hormone analysis, bone age
X rays and growth monitoring and will require the help of a Paed endocrinolgist,Hope this helps you out.