Ten-year-old girls have menstruation, may come again next month, but do not rule out the possibility of not coming. After the first menstruation of a ten-year-old girl, due to the underdevelopment of the hypothalamic-pituitary-ovarian axis, the ovarian secretion of estrogen and progesterone is unstable at this time, and at the same time, the central positive feedback mechanism for estrogen has not yet matured, so there will be more irregular menstruation. Since menstruation is not regular, it is not certain whether menstruation will occur next month. Thereafter, menstruation tends to become more regular as the child gets older. Parents should pay attention to communicating with their children to keep them in a good mood. If a ten-year-old girl experiences abdominal pain and other persistent symptoms after menstruation, it is recommended that she seek medical attention in a timely manner, under the guidance of a doctor, complete the relevant examinations, identify the cause of the disease and target treatment.