What is the significance of doing B-ultrasound during pregnancy? What are the main contents of the examination?

It is a very happy thing for women to get pregnant, and most women will be particularly worried about the development of the fetus during pregnancy, and they will also have a B-ultrasound examination as scheduled to find out. However, some pregnant women think that doing B-ultrasound once or twice during pregnancy means that the fetus is developing healthily, and there is no need to continue the examination later. But what they don't know is that the significance of B-ultrasound examination in different stages of pregnancy is different. Therefore, pregnant women need to carry out B-ultrasound examination as scheduled according to the doctor's instructions at every stage.

What is the significance of B-ultrasound examination for pregnant women at different stages? First of all, the first three months

Generally, the first trimester refers to the period from the first 1 day of menstruation to the first 12 week of pregnancy, which is called the first trimester. At this time, early B-ultrasound examination is mainly to know whether there is threatened abortion and help women rule out ectopic pregnancy. Because of abnormal menstruation, some women need to know the development of embryos through B-ultrasound examination and guess the gestational age.

Second, the second trimester.

13~ 27 weeks of pregnancy is the second trimester. At this stage, B-ultrasound examination is mainly to help check whether the fetal position is normal and whether amniotic fluid and fetus are in the uterus, because too much amniotic fluid and too little amniotic fluid will affect the development of fetus. In addition, B-ultrasound can check whether the umbilical cord is around the neck and whether the placenta of pregnant women is detached early.

Third, the third trimester

Generally speaking, the third trimester refers to the stage after 28 weeks of pregnancy. The B-ultrasound examination here is mainly to understand the fetal development and further understand whether there is abnormality. B-ultrasound can determine the position of placenta more accurately, understand the function of placenta through B-ultrasound, and predict the weight of fetus, so that doctors can decide the mode of production.

What kinds of B-ultrasound do pregnant women need to do during pregnancy? First of all, vaginal ultrasound

In the early pregnancy, pregnant women can know the fetus more accurately through vaginal B-ultrasound, which can help them to judge whether it is intrauterine pregnancy or ectopic pregnancy. Because vaginal ultrasound can be closer to the uterus, the result is more accurate.

Second, ordinary color Doppler ultrasound

In the second trimester, you can know the development of the fetus through ordinary color Doppler ultrasound. You can also get a preliminary understanding of the situation of the fetus in the uterus and the amniotic fluid in the pregnant woman.

Three, four-dimensional color Doppler ultrasound

Four-dimensional color Doppler ultrasound is generally a large-scale malformation examination in the second trimester. Because four-dimensional color Doppler ultrasound can display the fetus in a dynamic form, so that doctors can observe the development of various organs more specifically, and this kind of examination helps to rule out whether there is malformation.

Generally speaking, it is very important for pregnant women to do B-ultrasound examination during pregnancy, and the significance of examination at different stages is different, so don't think that there is nothing abnormal in B-ultrasound examination, which will easily lead to irreparable consequences in the later fetus because pregnant women don't understand it.