The growth of breasts in girls generally refers to the development of mammary glands, which normally starts around the age of 10.
Normally, girls usually start the first development of mammary glands around the age of 10, which is mainly manifested in the gradual bulging of the breasts, the expansion of areola area, and the appearance of hard lumps in the nipple area, which is a manifestation of puberty. Puberty is the transition period from childhood to adulthood, and due to the influence of hormone levels, this period has the development of secondary sexual characteristics and sex organs.
The real breast development of girls mainly occurs around the onset of menstruation, usually around the age of 12~13 years old. At this time, the growth of the breasts accelerates significantly, and sometimes you may feel a slight pain, but there is no need to be nervous because this is a normal physiological phenomenon in the process of development. However, if the pain persists without relief, you need to consult a doctor in time.
There are many differences in the development process of girls, which is related to the environment, dietary conditions, genetics and so on. If premature breast development occurs, you should be alert to the possibility of precocious puberty, and you must go to the hospital as soon as possible for relevant examination and evaluation. Meanwhile, in daily life, it is recommended to strengthen nutrition while choosing suitable underwear.