Aunt refers to menstruation. 12 years old menstruation is a normal phenomenon, no need for special treatment, but pay attention to menstrual hygiene, warmth and so on.
For women, with the increase in age, the hypothalamus pituitary ovary axis function gradually mature, the ovary can produce enough estrogen and progesterone, the lining can be cyclical peeling and vaginal bleeding, that is, menstruation, the general women more in the age of 11 ~ 16 years old menstruation, so 12 years old to menstruation is normal.
After menstruation, we should pay attention to keep warm, pay attention to rest, do not do too strenuous exercise, timely replacement of sanitary napkins and other supplies, to keep the vulva dry and clean, and at the same time, we should also pay attention to the record of menstrual cycle and other conditions, if there is any abnormality, the parents should take their children to the gynecology department of the regular hospital as early as possible, to determine the cause of the cause of the disease and then active treatment.