Black line on the belly during pregnancy

From the moment a pregnant mother becomes pregnant, her body begins to undergo some changes quietly. For example, the end of menstruation, the reaction of morning sickness, enlarged breasts, etc. Little did I know that at some point, a mysterious "black stripe" appeared on the pregnant mother's belly. This black bar is the midline of pregnancy.

How does the midline of pregnancy occur?

The linea nigra usually occurs during the 2nd to 4th month of pregnancy. The linea nigra in the middle is the so-called linea nigra. In other words, regardless of whether you are pregnant or not, you can see faint lines on everyone's body, the only difference is the intensity of the color. Once the changes caused by androgen occur, the melanocytes will be stimulated and pigmentation will occur. At this time, darker brown lines will appear, which is the white line of pregnancy. The two most common stages are puberty and pregnancy when the androgen changes are rapid.

The black line on the abdomen during pregnancy can really determine the gender of the baby, is it really accurate?

Many elderly people would say that this line can be used to identify the gender of the fetus: if the black bar is biased to the left, it is a boy, and if it is biased to the right, it is a girl; if the black bar is very straight, it is a boy, and if it is slightly curved, it is a girl. Some people say that the darker and straighter the black line is, the greater the probability of having a boy; some people say that if the black line is dark below the belly button, lighter on top, and flows toward the chest to form a straight line, the probability of having a boy is 95%; some people say that if the black line is slightly tilted to the left, the probability of having a boy is very high. I heard it’s pretty accurate! Is that really the case?

There is actually no scientific evidence for this.

A scientific study once conducted a survey on 3,928 pregnant women, and found that among pregnant women with a left-biased midline, 51.1% gave birth to girls; and among those with a straight midline, 49.4% gave birth to girls.

Therefore, there is no sufficient direct evidence to prove that the "midline of pregnancy" can tell the gender of the baby! Pregnant mothers don’t have to believe in this statement too much. If it is true, in many cases it is true. After all, the probability of a boy or a girl is 50%.

Are the linea nigra and stretch marks the same?

How can this pregnancy line disappear or become lighter?

The linea nigra is caused by estrogen secretion. In fact, the linea nigra is gray-black body hair. Many expectant mothers want to use depilatory cream to remove it, but depilatory cream contains chemicals, which will cause unnecessary effects on the fetus. Therefore, please avoid things containing chemicals before the newborn is born to avoid unnecessary harm to the baby.

In fact, pregnant mothers do not need to worry. The linea gestationalis is caused by the secretion of estrogen. It will automatically disappear one to two years after giving birth.