How many weeks of pregnancy is the most accurate in determining the gender of a baby?

Pregnancy is the most important thing for a family. And after pregnancy, everyone should want to know the gender of the fetus. You just need to be careful about the accuracy of the time when checking the sex of the fetus. Every pregnant woman's belly shape is different. It should be possible to easily determine the sex of the fetus, but there is no scientific basis for this. So at what weeks of pregnancy is it most accurate to determine the gender of the baby?

How many weeks of pregnancy is it most accurate to determine the gender of the baby by ultrasound?

B-ultrasound examination. At present, B-ultrasound is a fairly accurate method to determine the gender of the baby. Although the gender of the baby can be determined at around 18 weeks of pregnancy, the baby may be facing in the opposite direction or with legs crossed during ultrasound, making it impossible to see his or her genitals. Ultrasound identification of the sex of the fetus requires the pregnant woman to be more than 19 weeks pregnant. However, even the most experienced imaging experts can only determine the sex of the baby after three and a half months or more than three months of pregnancy, and the accuracy rate cannot reach 100%. But the security is the highest.

B-ultrasound data to see the gender of the fetus

How to tell the sex of the fetus from B-ultrasound data? Generally speaking, the data on the B-ultrasound report include biparietal diameter, abdominal circumference, femur length, gestational sac, fetal heart rate, etc. The placenta, amniotic fluid, umbilical cord, fetal spine, etc. can also be observed from the B-ultrasound. According to folk sayings, the gender of the fetus can be determined through B-ultrasound data in the following ways:

1. Look at the gestational sac: Look at the ultrasound report at 40-50 days of pregnancy. The size and shape of the gestational sac can tell the gender of the fetus. If the gestational sac is oval or round, it is a girl, and if it is elongated, it is a boy.

2. Look at the biparietal diameter and femur length: the biparietal diameter is the transverse diameter of the fetus's head, and the femur length is the length of the fetus's thigh bone. The older generation says that a boy has a shorter head and shorter thighs, that is, biparietal diameter minus femur length; a girl has a smaller difference between her head and legs.

A pregnant woman's body will undergo some changes after becoming pregnant, such as an enlarged belly and the formation of a pregnancy line. The internal environment of the pregnant woman will also undergo corresponding changes due to pregnancy.

Some people believe that by observing these changes, one can roughly estimate whether the pregnant woman is carrying a boy or a girl. In addition, four-dimensional ultrasound can also determine the gender of the fetus. Compared with other ultrasound examinations, four-dimensional ultrasound can observe the dynamic movement of internal organs of the human body in real time and can accurately distinguish the gender of the fetus.

Although four-dimensional color ultrasound can clearly show the gender of the fetus, during the examination, in order to avoid revealing the gender of the fetus, the doctor will actively avoid the gender characteristics and lower body of the fetus. At the same time, when making the CD in the later stage, the parts that may reveal the gender of the fetus will also be processed.

This article details at which weeks of pregnancy B-ultrasound is most accurate in determining the gender of the fetus, and also introduces the method of B-ultrasound library to determine the gender of the fetus. As a pregnant woman, it is relatively simple to know the gender of the baby in your belly, but China does not allow the identification of the gender of the fetus, so it is important to know this.