Stretch marks are caused by hormonal changes in the body of pregnant women during pregnancy, and the rapid expansion of the pregnant belly, causing the collagen and elastic fibers of the skin to break, and the abdominal skin fibers to be overstretched, forming stretch marks of varying lengths and widths. Older people have sagging skin and stretch marks will appear earlier. People who exercise regularly, are younger, and have good skin elasticity will develop stretch marks later, or even not at all. Generally speaking, it is possible to develop stretch marks from 4 months onwards to the third trimester of pregnancy.

Generally speaking, it is women who are in better shape and have better weight control. So stretch marks are not a must-have product for all pregnant women, that makes a difference. Pregnant women can do this if they pay attention to maintenance. I met my relative's sister, whose birthday is the same as mine.

During pregnancy, due to the bulge of the abdomen, the elastic fibers of the skin are damaged to varying degrees. There will be some wavy patterns of varying widths on the abdominal wall that will become elongation marks. This doesn't happen to everyone. I'm glad my weight was well under control with my first two kids. There are two main types of stripes: red and white. Red lines are the oldest manifestation of puffy lines and are characterized by red to purple colors.

I have these streaks on my groin because I wasn't using lotion while breastfeeding, and my whole belly is red with purple streaks. When I was a tire monitor, I noticed that the streaks on a BMW's belly resembled cracks in the glass after it had been hit with something heavy. The strike is due to the effects of hormones during pregnancy. In addition, abdominal swelling will damage or destroy the elastic fibers and collagen fibers of the skin, and the abdominal skin becomes thinner and thinner, with great differences, appearing wavy red rose or purple at different lengths. Therefore, prevention should be carried out during pregnancy. After pregnancy, especially after three months, the fetus grows and develops very rapidly, causing the abdominal cavity of the pregnant woman to expand accordingly. The muscle fibers of the internal and external oblique muscles of the abdominal muscles and the flat machine will stretch rapidly. Once the elastic deformation interval is exceeded, local fractures will occur. Finally, It's stretch marks.