Is it accurate to determine the gender of a baby by ultrasound at 16 weeks of pregnancy?

At 16 weeks of pregnancy, it is already the fourth month of pregnancy. At this time, the expectant mother can judge the gender of the fetus based on various characteristics, but many of the names for judging the gender of the fetus are actually not accurate. In fact, when you are four or five months pregnant, the fetus's genitals can already be seen through B-ultrasound, but the doctor will not tell you.

The baby's gender can be determined by B-ultrasound examination during the 4th to 5th month of pregnancy, based on the condition of the baby's reproductive organs. The results of B-ultrasound examination at 16 weeks of pregnancy should be relatively accurate, but the laws and regulations of our country strictly prohibit the assessment of fetal sex for non-medical purposes.

How to identify the sex of the fetus from B-ultrasound data? Generally speaking, the data in the B-ultrasound report include the fetal biparietal diameter, fetal abdominal circumference, fetal femur length, gestational sac, fetal heart rate, etc. The embryo, amniotic fluid, fetal umbilical cord, fetal spine, etc. can also be observed from the B-ultrasound. Folklore believes that 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 B-ultrasound report of 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 ring-shaped, it is a girl, and if it is long and narrow, it is a boy.

2. Look at the fetal biparietal diameter and femoral length: the fetal biparietal diameter is the transverse diameter of the fetal head, and the femoral length is the length of the fetal thigh bone. The older generation says that a boy is born with a short head and short thigh, that is, the fetal biparietal diameter - fetal femoral length 2, and a girl is born with a small distance between her head and legs.

The four-dimensional color ultrasound machine is the most advanced color ultrasound equipment in the world. After many pregnant women have done the four-dimensional color ultrasound, they will subconsciously ask the doctor about the gender of the fetus. Although the four-dimensional color ultrasound can identify the gender of the fetus, during the examination process, 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 disc in the post-production of the video, the part that may reveal the gender identification of the fetus will also be processed.

Therefore, although the four-dimensional color ultrasound can detect the gender of the fetus, it is illegal to identify the gender of the fetus for non-medical purposes according to national regulations. Reliable hospitals will not announce or indicate the gender of the fetus in any way.