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Does B ultrasound have radiation to the fetus? How many times is pregnant B ultrasonic best?

For pregnant expectant mothers, it is inevitable to do B-ultrasound during pregnancy. Although the technology of B-ultrasound keeps improving, people still have a lot of concerns. Some people think that B-ultrasound has radiation, and too much radiation will cause adverse effects on fetal development. Is this true?

The relationship between B ultrasound and radiation is clear

We usually say that the radiation is electromagnetic radiation, such as cell phone signal, radio signal and so on.

The real cause of fetal malformation is ionizing radiation, that is, gamma, alpha, beta and other radiation, which we usually don't touch in our daily life. The principle of B-ultrasound is ultrasonic conduction, that is, ultrasonic, without electromagnetic radiation and ionizing radiation.

Why does B ultrasound take a short time every time?

Although B ultrasound has no radiation, it has potential risk of heat conduction. However, this risk of heat conduction requires the ultrasound probe to irradiate the same part of the mother for more than 30 minutes before it has a serious impact on the fetus. Generally, ultrasound examination during pregnancy will not appear. The results of B-ultrasonic diagnosis have a lot to do with the level of instruments and doctors. If the doctors have completed the necessary examination in a short time, of course, there is no need to irradiate B-ultrasonic for a long time.

How many B-ultrasound should be done in pregnancy?

There is no obvious conclusion about how many B-ultrasound should be done during pregnancy in the medical field, and the suggestions of different countries are not the same. Generally, 3-4 B-ultrasonography will be performed during pregnancy. Special tips: how many times of B-ultrasound should be done should be determined according to your own situation. If abdominal pain, vaginal bleeding, frequent fetal movements and other situations occur during pregnancy, B-ultrasound should be carried out according to the situation.

Although B-ultrasound is considered as a safe and noninvasive method of examination, and there is no report that it will affect the development of the fetus, most doctors do not recommend that pregnant mothers do B-ultrasound frequently, but it should be determined according to the actual situation.