Female friends have stretch marks when they are pregnant, which is a common situation for many female friends. But stretch marks have a great influence on the figure of female friends. Female friends should have a scientific understanding of stretch marks in time, so what about stretch marks scars?

Are stretch marks scars?

Stretch marks are not scars. The formation of stretch marks is mainly influenced by pregnancy hormones. The swelling of the abdomen causes the elastic fibers and collagen fibers of the skin to be damaged or broken to varying degrees due to external forces, and the skin becomes thinner and thinner, and some pink or purple wavy patterns with different widths appear on the abdominal wall skin. After delivery, these patterns will gradually disappear, leaving white or silvery shiny scar lines, that is, stretch marks.

The location of stretch marks is mainly in the abdominal wall, but also in the inner and outer thighs, buttocks, chest, shoulders, arms and other parts, especially in primiparas. Moreover, once it appears, it will not disappear slowly with time, which will make women's skin slack, wrinkle, sagging breasts and abdominal fat accumulation, which will seriously affect women's postpartum posture and physical and mental health.

When most women are pregnant for 5-6 months, there will be many reddish or purple stripes on the skin of upper thighs, abdomen and breasts, which are called "stretch marks".

Due to endocrine changes during pregnancy, intradermal elasticity (fiber) is weakened, brittleness is increased, and the walls of subcutaneous capillaries and veins are thinned and expanded. After 5 months of pregnancy, due to the development of breast tissue and the deposition of adipose tissue, the uterus is getting bigger and bigger, which leads to the stretching and thinning of the skin of the breast, abdomen and upper thigh, the fracture of elastic fibers and the appearance of stretch marks due to the color of subcutaneous blood vessels.

Causes of the formation of stretch marks

There are many layers in human abdomen from the outside to the inside, which are skin, skin elastic fibers, subcutaneous fat layer, rectus abdominis composed of muscle fiber groups and tendons, preperitoneal fat layer and peritoneum. Under normal circumstances, the skin elastic fibers and rectus abdominis maintain certain elasticity and freely expand and contract within certain limits. When a woman is pregnant for more than 3 months, the enlarged uterus protrudes from the pelvic cavity and develops into the abdominal cavity, and the abdomen begins to swell. Under the influence of the enlarged uterus, the skin elastic fibers and abdominal muscles began to elongate.

Especially after six months of pregnancy. Beyond a certain limit, the elastic fibers of the skin are broken and the tendons of rectus abdominis are separated to varying degrees. As a result, pink or purple irregular longitudinal cracks appeared on the abdominal skin. After delivery, although the broken elastic fiber is gradually repaired, it is difficult to return to the previous state, and the original cracks on the skin gradually fade away, and finally become silvery white, that is, stretch marks.

The appearance of stretch marks is related to physical fitness. Not every pregnant woman will have stretch marks, and the severity of stretch marks varies from person to person. The most common part of stretch marks is the abdomen. The formation position and color of stretch marks. Stretch marks appear in the lower abdomen, thighs, buttocks, chest or back during pregnancy, showing purple or pink stripes. According to statistics, about 70% ~ 90% pregnant women will have stretch marks when they are pregnant for the first time, which makes women who love beauty very upset.