Can uterine color Doppler ultrasound see the sex of the fetus?

With the development of medical technology, medical equipment is becoming more and more perfect, which means that there are more and more things that can tell you whether the fetus in your belly is male or female. Whenever you go to the hospital for examination, such as B-ultrasound and color ultrasound, these data all contain information about the sex of the fetus in your belly. So, can uterine color ultrasound see the sex of the fetus?

Can uterine color ultrasound tell the sex of the fetus?

There are two common legends about B-ultrasound and the sex of the fetus. First, B-ultrasound can observe the genitals of the fetus, and those who see the penis are boys, while those who don't see the penis are girls. Second, according to the data on the B-ultrasound list, the gestational sac is a long boy and the gestational sac is a round girl. So, are these rumors really credible? For this question, experts say this: B-ultrasound observation of fetal sex-feasible. But it is not 1% accurate. If you have the opportunity to walk into the B-ultrasound room of any hospital, you will see a slogan similar to this on the eye-catching position on the wall: Fetal sex identification that is not needed for medical diagnosis is prohibited. It can be seen that it is true that B-ultrasound can observe the sex of the fetus. However, it should be noted that it is not 1% accurate to predict the sex of the fetus by B-ultrasound. Before 1 weeks of pregnancy-it's impossible to measure. Although when a woman is pregnant, the sex of the fetus is determined by genes. But at the very beginning of fetal development, men and women are the same. At the beginning, the left and right embryos have a small bud or a raised genitalia. Only at about 7 weeks of pregnancy will buds or bulges develop and form penis, scrotum or clitoris and labia. But at this time, B-ultrasound still can't really tell the sex of the fetus. Because the development of the fetus is a gradual process, it takes time, and it is impossible to achieve it in one step.

Does it depend on the size and shape of the gestational sac to judge the sex of the fetus?

Some people cite the size and shape of the gestational sac. So is the gestational sac accurate for men and women? Rumor: the shape of the gestational sac is long, so it is more likely to be pregnant with a male baby; If the gestational sac is oval or round, it is likely to be a female baby. Interpretation: The size and shape of the gestational sac of expectant mothers have nothing to do with the sex of the fetus, but are determined by many factors such as pregnancy time, nutrition, implantation position and uterine cavity size. First, the well-developed gestational sac is generally flat, but sometimes it will become longer with the shape of the uterine cavity. The shape of the gestational sac is actually determined by its tension and amniotic fluid content, and will change its shape by itself. Therefore, the pregnancy days are different, and the gestational sac you see may be different. Second, the shape of the gestational sac also depends on the condition of the pregnant woman during the examination. For example, some pregnant women have a flat uterus because of holding their urine for a long time, and the shape of the gestational sac also looks flat. Third, when some pregnant women are pregnant, the implantation position of sperm and eggs is just right, and some positions will be biased, resulting in different gestational sac shapes. Fourth, the direction of the B-ultrasound probe is different every time, and the shape of the gestational sac is different from different angles. To sum up, we can know that the shape of the gestational sac can not judge the sex of the fetus. However, pregnant women should pay attention to the shape of gestational sac to judge whether the fetus is healthy.