A 10-year-old girl is in the stage of pubertal development, which may be accompanied by swollen, itchy breasts, pubic hair, and even the appearance of menstruation. 10-year-old girl’s development process is more obvious symptoms, manifested in the breast appeared breast nucleus, and areola will deepen as well as enlargement, some girls in the process of growth and development may appear slight swelling or itching and other phenomena, these are normal physiological situation, parents do not have to worry too much, in addition to a small portion of the girl will also appear menstruation, pubic hair pubic area. Parents should inform girls in advance that this physical characteristic is a normal phenomenon, to avoid psychological pressure on the child.