Why do you have stretch marks on your breasts?

Pregnant mothers are no strangers to stretch marks. After all, as the fetus continues to develop, a large number of stretch marks will appear on the abdomen. Although some products can provide relief, it will take a long time for stretch marks to disappear. Generally, stretch marks appear on the abdomen. So, why do stretch marks appear on breasts? In fact, it is very simple. The breasts undergo secondary development during pregnancy, which causes the skin fibers to break and stretch marks to appear.

The formation of stretch marks is mainly due to the influence of hormones during pregnancy. In addition, the distending abdomen causes the elastic fibers and collagen fibers of the skin to be damaged or broken, and the abdominal skin becomes thinner and finer, resulting in some pink or purple wavy patterns of varying widths and lengths.

After delivery, these patterns will gradually disappear, leaving behind white or silvery shiny scar lines, also known as stretch marks. Stretch marks mainly appear on the abdominal wall, and may also appear on the inner and outer thighs, buttocks, chest, lower back and arms. This is most obvious in primiparas. Once stretch marks appear, they will not disappear and will be accompanied by sagging skin, sagging breasts, and accumulation of abdominal fat, which will seriously affect women's body shape and physical and mental health after childbirth.

Stretch marks are a type of stretch marks. Stretch marks are the phenomenon of broken skin fibers that occur during pregnancy, fitness, and sudden weight gain, and appear as red, white, or purple stripes. It also includes stretch marks and sports cracks. In addition to the abdomen, the parts of the body with a larger range of motion include the inner and outer thighs, knees, buttocks, and lumbar spine.

The abdominal wall tissues of the human body from outside to inside are skin, skin elastic fibers, subcutaneous fat layer, rectus abdominis muscle composed of muscle fiber groups and tendons, preperitoneal fat layer and peritoneum. Under normal circumstances, the elastic fibers of the skin and the rectus abdominis muscle maintain a certain elasticity and can stretch and contract freely within a certain limit. When a woman is pregnant for more than 3 months, the enlarged uterus protrudes from the pelvic cavity and develops into the abdominal cavity. The abdomen begins to swell, and the elastic fibers in the skin and abdominal muscles begin to stretch.

It becomes more obvious after 6 months of pregnancy, when the elastic fibers in the skin gradually break and irregular pink or purple longitudinal cracks slowly appear on the surface of the abdominal skin. After production, the broken elastic fibers are gradually repaired, but it is difficult to restore them to their previous state. The original cracks on the skin will gradually fade and finally turn into silvery white stretch marks.