What are the changes seen in girls at the time of puberty?

(N/A) During puberty,girls undergo several physical and physiological changes due to the secretion of hormones like estrogen and progesterone:
$1$. Breast development: There is an increase in breast size and the skin of the nipples becomes darker.
$2$. Hair growth: Appearance of hair in the genital area and other parts of the body such as underarms,face,hands,and legs.
$3$. Reproductive system maturation: Increase in the size of the uterus and ovaries.
$4$. Menstruation: The beginning of the menstrual cycle (menarche).
$5$. Skin changes: Increased secretion of oil from the skin glands,which often leads to the appearance of pimples.