The growth of girls requires a certain process, from infancy to adolescence. After entering puberty, women's bodies undergo certain changes. Women's breasts begin to develop and menstruation begins to arrive. But the specific time when different women's menstrual periods come is different, so at what age do girls usually have menstruation?
Firstly, the changes in a woman's body are very obvious after entering puberty, and her breasts develop earlier, about two years before menarche. Then the onset of menstruation will be relatively later, around the age of 12. However, there is no unified time standard, some people may arrive earlier and some may arrive later.
Secondly, the timing of menarche can be influenced by factors such as genetics, environment, and nutrition. Some people may have their period as early as 11 years old, while others may delay it until 15 years old. However, if a woman has not had her period after the age of 15, it may be due to a certain disease in the reproductive system, which requires attention and timely medical treatment.
Finally, after a girl's menstrual period, the speed of her body growth will decrease, and the height of taller women is basically fixed. Even if she grows taller, it will be slower. So the growth rate of a girl's height is actually closely related to her age to some extent.