Girls begin to develop at about 10 to 12 years of age, and at about 13 years of age the first menstrual period begins, and the girl’s true sexual development begins.
A girl’s developmental age should be around 10 to 12 years old and no later than 14 years old. If a girl does not develop after the age of 14, it is considered delayed sexual development, and if secondary sexual characteristics appear before the age of 8, it is considered to be a sign of precocious puberty.
When a girl enters the developmental period, her breasts and nipples increase in size first, and then her armpit and pubic hair begin to grow. Generally speaking, the first menstruation may occur two and a half to three years after she enters the developmental period, which marks the maturity of the development of the female reproductive organs and reproductive functions.
As each person’s physical condition is different, the time of development is also different, the specific time of development varies from person to person, too early or too late development is not normal, it is recommended that the patient consult a doctor for differential diagnosis in a timely manner, under the guidance of the doctor to carry out appropriate interventions or treatments.