Question
What are the ages and characteristics of girls’ development?
Answer
The age of girls entering puberty, generally speaking, is around 12 years old, when they start showing secondary sexual characteristics and enter the developmental stage. However, under normal circumstances, girls typically begin to gradually enter the puberty phase around the age of 9. Some girls may exhibit signs of puberty, such as breast development, before the age of 9. If there are obvious secondary sexual characteristics before the age of 9, we can determine whether it is precocious puberty through hormone testing. Generally, by the age of 12, girls will have fully entered the puberty phase.