Is it true that when you are pregnant with a boy, your belly is pointed, while when you are pregnant with a girl, your belly is round? Is there any scientific basis for it? When you are pregnant with a boy, your belly is pointed, while when you are pregnant with a girl, your belly is round. Can the gender be determined by looking at the shape?
In China, although the idea of favoring boys over girls has gradually faded away, unborn children Gender is still a key concern for expectant mothers, their families and close friends. Correspondingly, there are many sayings about pregnant women. For example, if the mother\’s belly is round, she is probably pregnant with a girl; if her belly is \”pointy\”, she is probably pregnant with a boy. Don’t think that only China has this statement. Foreigners also have similar superstitions on this issue. For example, if a pregnant woman’s belly protrudes forward like a large tennis ball, it may be a boy. If the weight of the belly is relatively evenly distributed, it may be a boy. , it might be a girl.
Of course, the above statements are not reliable. The shape of a pregnant woman’s belly is largely determined by the size of the fetus, although boys are indeed heavier than girls on average at birth. , but this gap is not enough to make a clear difference in the bulging belly of pregnant women.
In addition, the position of the fetus in the uterus will also affect the shape of the mother\’s belly. If the baby is facing away from the mother in the womb, the mother\’s belly will be more prominent; conversely, if the baby is facing the mother in the womb, the belly will appear flatter. None of this has anything to do with the gender of the child. Therefore, those methods of determining the gender of the fetus based on the shape of the belly are actually blind.
The most reliable way to determine the gender of a child before birth is to wait until the fetus reaches about 13 weeks to have a B-ultrasound, or to use chorionic villus puncture, or to test the mother\’s blood. Is there a unique sequence on the Y chromosome? If so, it must be a boy. However, there is an interesting study by obstetricians and gynecologists, which allows pregnant women to guess in advance whether the child will be a boy or a girl (although only a little in advance) based on the difficulty of giving birth.
In 2003, a group of obstetricians and gynecologists from Dublin published a brief study in the British Medical Journal on the relationship between the birth process and the gender of the fetus. relation. They reviewed the birth processes of 8,075 babies (including 4,070 boys and 4,005 girls, all first-born babies) born at the National Obstetrics and Gynecology Hospital in Dublin between 1997 and 2000. They found that boys were more difficult to develop than girls. born!
From the statistical resultsIt turns out that male babies use more oxytocin when they are born, and they also use more instruments such as forceps and suction cups, and they take longer. In cases of caesarean section, there are significantly more male babies than female babies. infant. In short, through multiple regression analysis, the researchers found that there is indeed a difference in the difficulty of giving birth to a boy and a girl, at least in terms of difficulty.
The difference between giving birth to a boy and giving birth to a girl (if the P value is <0.05, it can be considered a boy) and girls). The picture comes from the reference [1]
Researchers are not yet sure what causes this phenomenon. Weight may be a factor, but they found that there is no connection between the method of delivery and weight. There\’s also the possibility that baby boys have larger head circumferences, which would make birth less smooth, but researchers say this doesn\’t fully explain the differences between men and women at birth. However, the researcher also said at the end of the article that the result of this study is probably to tell obstetrics and gynecology colleagues that when they joke in the delivery room that \”it must be a boy if it is so difficult to give birth\”, it may not necessarily be a joke.
PS: After reading this article, I suddenly discovered that men are the abbreviation of \”hard-to-be-born people\”. They are already in HARD mode when they are born~~~
