What is the average bone age at menarche?

When the human body grows to a certain extent, the uterine wall is affected by the secreted estrogen and the first menstruation will occur. The first menstruation means that the female body will experience the changes of puberty. The body shape, breasts and height will change. It is one of the important signs of puberty. Some people would like to know about this. At what age do girls usually have their first menstruation when their bone age is measured?

The time when a girl has her first menstruation varies from person to person, but generally it is between 14 and 16 years old. However, with the improvement of modern material conditions, the menarche of girls is gradually getting earlier, and the first menstruation will occur between the ages of 10 and 12. However, the first menstruation is also related to genetic inheritance, climate, lifestyle and nutrition.

Research has found that the vast majority of girls have their bone age measured above the age of menarche, generally about 1 to 2 years older. That is, if a girl has her first menstruation at the age of 10, her bone age may be 11 or 12 years old. If a girl has her first menstruation at the age of 12, her bone age would be 13 or 14 years old. If parents want to know the exact bone age, they can go to the hospital to take a wrist bone X-ray to find out clearly.

After a girl's menarche, her bones will continue to grow and develop, so her height will continue to grow, but the rate will become slower. She will generally continue to grow by 4 to 8 cm, and most of them are around 5 cm. However, this is not certain. There are also a few girls who can grow another 10 cm after their first menstruation. In addition, some girls only grow 2 to 3 cm after their menarche.