At what age do girls start to develop

Almost all schools now attach importance to the physical and health education of teenagers. Some children, because they don't understand it, are afraid of their physical or psychological changes when they reach puberty, which leads to delays in their studies. So today I will tell you at what age girls start to develop. What are the characteristics of girls' development?

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The secondary sexual characteristics, as external changes of women, are more eye-catching: at the age of 9-10, breasts begin to develop, which is the first secondary sexual characteristic displayed by girls and a sign of puberty; at the age of 11, pubic hair appears; at the age of 12-13, the nipples and areola continue to grow larger, but still blend in with the entire breast contour; pubic hair continues to increase and develops towards the mons pubis and the middle abdominal wall, changing from thin to thick and the pigmentation gradually settles.

Girls will have their first menstruation after they turn 13 (some girls earlier), but it is usually still irregular. In the first one or two years, the ovarian function is not yet complete or mature enough to ovulate. At the same time or later as the first menstruation, axillary hair begins to grow, and pubic hair presents a female-specific inverted triangle distribution, with the base parallel to the level of the pubic symphysis. Glands in the areola area develop, forming a second bulge on the fuller and enlarged breasts. At the age of 14-15, regular ovulatory menstruation may occur. The breasts mature, with nipples protruding from the clearly defined breasts. At the age of 16-17, development is close to maturity.

The above is some introduction to girls’ development, including the age of development and general characteristics. If there are still some young women who do not understand this knowledge, please read the above content. I hope it can help everyone. You can also communicate more with parents in your daily life. Don’t let these small problems bother you and face them correctly.