At what age do breast development stop?

Development is something that everyone must experience during the growth process, but breast development is unique to girls. Girls are not only concerned about when development begins, but also at what age breast development stops. Of course, everyone's situation is different. Development that is too early or too late will bring bad consequences. Next, let us understand the reasons for breast development that is too early or too late, and what age development is normal.

Breast development is the first sign of puberty for girls. The physiological function of the breast is to secrete milk and feed the baby, but its aesthetic significance often exceeds its physiological function.

Breasts are derived from sweat glands and are mammary glands covered with skin and fat. The mammary gland is divided into alveoli and milk ducts, and is surrounded by fat and fibrous connective tissue. There is a round area around the nipple with a diameter of about 4-5 cm. It has sebaceous glands that secrete sebum to moisturize the nipple and breast.

The development of a girl's breasts is mainly characterized by 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.

In fact, breasts begin to sprout in the sixth week of embryonic development. By birth, the rudiments of breasts are already formed.

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.

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.

During adolescence, the breasts are firm and elastic because they are mainly mammary glands with less fat. When a girl reaches 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.

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 breast becomes a mature breast.

According to observations of children in Beijing, a few girls have begun to develop breasts at the age of 8, half of them begin to develop at the age of 10, of which about 20% can reach the third degree, and their breasts are fully developed at the age of 13, with more than 80% of girls developing to the third degree. At the age of 19, 90% of girls have developed to the fourth degree.

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.

The development of girls is not only a physiological change, but also a certain psychological development. Therefore, as parents, we must learn to guide and not put pressure on children. As for at what age the breast development stops, relevant experts point out that even after puberty, girls may still have secondary development, so women with small breasts don’t have to worry. Besides, medical technology is so advanced now, there will always be ways to make breasts bigger, but you have to choose a reasonable and effective method.