3D Color Doppler Ultrasound: To Determine Baby’s Gender
3D color ultrasound is a three-dimensional imaging technology that can intuitively and three-dimensionally display the three-dimensional structure of human organs and observe the three-dimensional structure dynamically and in real time.
More importantly, the 3D color Doppler ultrasound can observe the growth and development of the fetus in the uterus from multiple directions and angles. Generally, pregnant women can determine the sex of the fetus through the baby’s external genitals on the 16th week of pregnancy.
When can we know the gender of the baby?
Usually after 4 months of pregnancy, the fetus has basically formed, you can directly observe the sex characteristics of the fetus through the color Doppler ultrasound to determine the sex of the fetus. The general situation is to do the first color ultrasound in 16 weeks, 22 weeks to 24 weeks. It is generally used to see if the baby is deformed, especially the cleft lip of the upper lips. There is also continuity of the spine, internal organs and so on.
Most of the second color Doppler ultrasound is done in week 28-30, and it is also used to screen deformities. At this time, the baby has grown up more, and you can see more clearly the parts that were not seen for the first time. For the placenta, Amniotic fluid and the development of the baby can be further understood. At this time, you can roughly understand the size of the baby and the maturity of the placenta.
About 37 weeks later, another prenatal color Doppler ultrasound will be done. The aim is to look at the placenta and amniotic fluid, predict the weight of the baby, check if the umbilical cord is around the neck and more to determine whether the mother is up for a smooth delivery.
Ways to see the baby’s gender besides 3D color Doppler ultrasound
1. B-mode ultrasound examination, using ultrasound obstetric examination, can clearly display various cross-sectional images of various organs and surrounding organs, assess fetal growth, measure amniotic fluid volume, and confirm the placenta position and fetal position.
2. Blood test for fetal gender. Because fetal DNA and a large amount of maternal DNA are present in the plasma of pregnant women, the part of the fetal nucleotide sequence from the father and the maternal is generally analyzed. The male fetal DNA has a Y chromosome-specific sequence, and researchers currently generally use fluorescence quantitative PCR Technology to detect specific genes on the Y chromosome such as the SRY gene. If the SRY gene is detected, then the fetus is a boy, otherwise it is a girl.
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