At what age do girls stop growing?

There are many issues that girls need to pay attention to when they grow up. At this time, the female body will undergo many changes. These changes must be paid attention to to avoid certain impacts on their own bodies. During the development process of girls, they should choose simple food in their diet, which is conducive to the body's absorption of nutrients. So at what age do girls stop developing? This is also unclear to many parents. The following is a detailed introduction.

At what age do girls stop growing?

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.

However, breast development in teenage girls begins between the ages of 11 and 14. If a girl is over 15 and her breasts have not started to develop, it is time to pay attention. If a woman is over 18 and her breasts have not developed, she should consider whether it is caused by illness. Specific analysis should be given to each situation that arises.

The growth and development of the breasts are mainly affected by a variety of hormones in the reproductive endocrine axis, such as gonadotropin and prolactin secreted by the pituitary gland, and estrogen and progesterone secreted by the ovaries; in addition, the hormones secreted by the adrenal glands and thyroid glands, and growth hormone secreted by the pituitary gland are also needed for the breasts to develop fully and completely.

After understanding the age at which girls stop growing, they should not choose too many high-calorie foods after they stop growing, otherwise they will tend to be obese. Also, it should be noted that girls should do some exercise at this time, which is very helpful for strengthening their bodies. Parents should also pay attention to this.