Breast development process full picture

It is the most beautiful part of the female body and also a key difference between women and men. During sex, men like to hold women's breasts, which happen to be sensitive areas, and stimulating the breasts can also make women do it. So, do men know how women's breasts grow and develop? Breasts change size and function with age, cycle time, and whether or not there is pregnancy. Below is the breast development at different stages.

1.: At birth, the fetus is indented and well formed, and has a tube system with 15 to 20 lobes. Its alveoli contain a small amount of colostrum (fluid secreted by the breasts of the fetus due to the stimulation of the pregnant mother). However, it will be secreted from the nipple within a week after birth and can last until three to four weeks after birth, and the alveolar tissue will quickly degenerate into tube tissue. During childhood, the breasts do not grow or develop much.

2. Puberty:

When girls are ten to twelve years old, the hypothalamus begins to secrete hormones, which induces hypothalamic pituitary secretion, further stimulating the secretion of estrogen and. It stimulates the growth and development of the vaginal tube, while lutein copper stimulates the growth and development of the vaginal alveoli, leading to the rapid development of breast tissue during puberty.

Generally, breast development during puberty is divided into five stages.

a. Stage 1: Nipple protrusion.

b. The second stage: From the age of ten to twelve, the breasts begin to grow and develop, the nipples also enlarge, and a small hillock forms on the breasts.

c. The third stage: around thirteen to fourteen years old, the nipples and breasts continue to grow and develop.

d. The fourth stage: From the age of fourteen to fifteen, the nipples and nipples begin to protrude, and the breasts gradually become spherical.

e. Fifth stage: After the age of fifteen, the breasts gradually mature and take shape.

3. During pregnancy:

The most noticeable change in the first few weeks of pregnancy is breast tenderness and tenderness, which lasts throughout the pregnancy. In the early stages of pregnancy, the blood vessels in the breasts become elevated and the surface veins become more prominent, usually accompanied by pain and itching. In addition, it will also increase in size and become darker in color. Transformation of breast tissue is ductal cell proliferation and hyperplasia, resulting in tube growth and branching, reaching many times the size of non-pregnant women.

From the beginning of the second trimester, the proliferation of alveolar cells gradually decreases, and the cells that replace them turn into cell differentiation. The alveolar cells gradually turn into unicellular metabolic cells. Therefore, in the second trimester, a small amount of light yellow liquid called colostrum can be seen in the cavity. Breast expansion continues throughout pregnancy because the cells continue to divide and grow, and the secretion volume continues to increase.

Like the endometrium, it will be affected by women and cause changes. This kind of change requires more care to control and care.