The first menstrual period is an important sign of pubertal development in girls, and it is the beginning of sexual maturity. The most important question for girls and their parents at this time is whether they can still grow after menstruation. How much more can they grow? Generally, the first menstruation is normal around the age of 12. Unless there is precocious puberty (see related article), the bone age will close completely early. If you want to know if you can still grow taller and how much taller you can grow, it is best to go to the hospital for a bone age test, which is the most accurate way to understand that menarche is an important sign of developing sexual function. The second fastest growing period of height for girls (puberty) is about a year before the first menstruation, in the six months before and after the first menstruation, the rate of height gain begins to slow down, and the growth rate slows down significantly after the first menstruation, the average height can also grow 4-6 cm. Generally after the first menstruation and then grow 10 cm people are very few, this kind of people in marriage and children can also grow 2-3 cm taller, often are tall girls; on the other hand there are girls after the first menstruation only grew 2 cm, most of them are short girls. To sum up, the final decision on the final height after menarche still depends on the size of the bone age at that time to determine the remaining growth potential.