When do breasts stop growing? Girls must understand

When girls reach puberty, their breasts begin to develop. Breast development is a long process. The timing of breast development is related to the individual's body and is closely related to many factors such as race, genes, environment, and diet.

1. The development of a girl's breasts is mainly the elongation and increase in branching of the mammary ducts, the increase in the elasticity and volume of the connective tissue, and the accumulation of fat. The full development of the mammary alveoli that secrete milk does not occur until after pregnancy. The entire breast is covered with a layer of fat. If the fat layer is thick, the breast will appear full, plump and elastic.

2. During childhood, breasts remain static and there is not much difference between male and female breasts. However, until puberty, the girl's breasts serve as the first signal of development, heralding the arrival of spring, gradually becoming fuller and mature from the initial budding.

3. When girls are 9 to 10 years old, their ovaries start to function and secrete female hormones, and their breasts begin to develop. First the nipple protrudes, then the mammary glands increase, fat accumulates, and the entire breast develops fully.

Two or three years after a girl's breasts begin to develop, her menstruation begins, and pubic hair appears after half a year. From then on, the girl enters adolescence, a period of rapid growth and development.

4. During adolescence, the breasts are firm and elastic because they are mainly mammary glands with less fat. When you reach the age of 20, the fat in the breasts increases, forming slightly sagging mature breasts. It takes about four to five years for a girl's breasts to begin to develop and take shape.

5. The medical community in my country divides the degree of breast development in girls into four degrees: the first degree is that the chest is flat and the breasts have not yet developed; the second degree is that the nipple and areola appear as bud-like protrusions on the chest wall; the third degree is that the breast is slightly bulging, and the nipple and areola protrude on the breast like a small hill; the fourth degree is that the breast bulges significantly, the nipple is protruding, the bud-like protrusions disappear, and the breasts become mature.

6. The early or late development of female breasts is affected by many factors such as race, genetics, nutrition, region, cultural status and lifestyle habits. Due to various reasons, the time at which girls' breasts develop can vary greatly. Some girls may not start to develop until they are 13, and may not be fully developed until they are 20, or may even remain at degree three when they become pregnant.

7. The size of breast development is affected not only by the effects of estrogen in the body, but also by genetics, environmental factors, nutritional conditions, body fatness, physical exercise and other factors. If the mother has small breasts, her daughter will most likely have smaller breasts as well. This is due to genetic factors. It is also difficult for thin girls to have full breasts. Small breasts may also be related to the early or late development. Although the breasts are small, as long as the reproductive organs develop and menstruation are normal, it will not affect the breastfeeding function and fertility in adulthood. Generally speaking, the early or late development of breasts does not affect the speed of future development, nor does it affect the size and shape of the breasts in adulthood, so girls whose breasts develop later and are smaller do not need to worry.