Why is there a recessed vertical line in the middle of a girl s belly?

If there is no pigmentation, then there will be a shallow white line in the abdomen, and if the action of hormones causes a reaction of pigment cells, then dark brown streaks will appear, which is the second trimester, which is the stage of hormone secretion. <>

The midline of pregnancy will become darker, which has a lot to do with the strength of the hormonal response, generally**dark people will be more likely to produce pigmentation than Caucasians, and it will also affect the degree of tension, which means that when your belly is bulging, it will become inflamed because of tension, which will lead to pigmentation, which will lead to **become dull.

It is also possible that the appearance of stretch marks is due to the expansion of ** tissue (collagen fibers) to the loss of elasticity, and from the appearance, it will show linear, sunken, and red lines, but the severity of this pattern varies from person to person and depends on the individual's hormones, weight growth rate, genes, etc.

During pregnancy, there will be a faint white mark, this white mark will extend from the navel to the pubic bone during pregnancy, and in the middle of pregnancy, these lines will get deeper and deeper, and finally become a black line, and some will even spread to the chest line.

Because dark women are more sensitive to the response of pigment cells, the time of the midline of pregnancy is also different, but it generally occurs successively when the pregnant woman's belly gradually bulges. <>

Changes in pregnancy hormones can cause pigmentation, which generally disappears about 6-1 year after childbirth, but some people who are difficult to eliminate pigment may have to wait a year or two, or they may not be able to eliminate it completely.

In fact, most women have this phenomenon, but some people have sparse hair on their bodies, and there is not much pigmentation on their bodies, so they don't need to worry too much. <

The vertical line in the middle of the girl is actually a fat bar, because there is no way to drain it, and the fat is divided here. There are many girls, some are deep, some are shallow.

This is a normal physiological phenomenon, if there is a lack of exercise, the muscles are more full, then it will easily lead to the separation of the rectus abdominis muscle, if the separation of the rectus abdominis muscle will easily cause the relaxation of **.

It should be the vest line, which is commonly known as the abdominal muscle line. The main reason is that girls exercise regularly, which causes them to have several muscles in their abdomen, and the muscles are naturally concave where they are separated.