Why do many girls have a brown vertical line on their stomachs?

This is because these girls have already given birth to children, and in the process of rebirth, a pregnancy line has been formed, and the body's estrogen secretion is too vigorous, forming a corresponding accumulation on the **, so there is a brown color.

Because there is melanin in the body, then it will cause our body to have a midline of the abdomen, which is a very normal phenomenon and has nothing to do with caesarean section.

Generally, there is a brown vertical line on the belly of a girl, which indicates that she has given birth, because the endocrine disorder occurs during pregnancy, and the hormones in the body have also changed, a brown line will appear on the stomach, so boys do not have it.

Because girls have more fat on their stomachs, they are prone to brown vertical lines, especially those women who have given birth, while boys generally have less fat, so they are not easy to have.

This production is associated with increased levels of estrogen and progesterone, especially during puberty.

In fact, this line is the so-called pregnancy line, which will appear during the 2nd to 4th month of pregnancy, and due to the influence of progesterone, this line will grow from the perineum to the navel, and some even grow to the chest. Some are so light that they can't be seen, and some are very dark and even have hair, which is normal. The length and amount of hair growth and the depth of color of the pregnancy line are determined by the hormones of the pregnant woman herself.

Many people think that this line only grows after pregnancy, but in fact, many people have this line on their abdomen before pregnancy, but it is white, and people with fair skin are basically invisible, while people with dark skin or people with more pigmentation can see it. However, this line does not do much either.

Some mothers are glad that they don't have such an ugly line, in fact, 90% of pregnant women will have this vertical line during pregnancy, especially after the belly is bigger, the abdominal muscles relax in order to accommodate the enlarged uterus, and the hormonal changes during pregnancy let the melanin precipitate, which will make this line look particularly scary. But don't worry that this line will not disappear, usually in a few months to 1 year after giving birth this line will be faint, of course, some people will take 1-2 years to disappear, which is related to the pigmentation of the body.

Just ask her directly, too much suspicion is not good for the relationship. The thread you're talking about does look a bit like a caesarean section scar, but it seems like maybe she's had some other surgery.

I also had a black line about 9 centimeters below the navel on my stomach, which seemed to have been there for as long as I could remember, and I had no surgery in my memory, so I guessed it might be a birthmark.

According to the situation you described, I probably know that it should be the stretch marks caused by the large fetus during pregnancy, in fact, this kind of problem does not need to worry too much about your belly is not good-looking, because there is an ointment that can completely remove such markings.

There are two possibilities: one is a black line formed by natural melanin deposits. The second is the stretch marks that form after a woman becomes pregnant. You can ask your girlfriend directly and see what she says. Mutual respect, mutual trust and mutual respect between men and women are the most important things.

The black line on the stomach is due to the physiological structure, the blood vessels on both sides are intersected again, and the middle part is more likely to produce pigmentation, this black line varies from person to person, whether deep or shallow, it is normal.

Why is there a black line on a girl's stomach? Many people thought crookedly, and the doctor told the truth.