Most girls get menstruation at the age of 14, but some may get menstruation at the age of 11. Clinically, it is observed that girls can continue to grow taller even after menstruation. In order to be more accurate, you can also see a doctor for a bone age examination, and if the long epiphysis is not closed, the height can continue to increase. Menstruation is a sign that the ovaries are producing eggs and the endometrium is shedding periodically, which is also a sign of sexual maturity. When you have your period, you should be in a stable mood, do not engage in strenuous sports or heavy physical labor, and avoid eating spicy and stimulating foods, because the body’s immune function decreases when you have your period, which can easily lead to inflammatory infections.