25 weeks to do four-dimensional ultrasound is appropriate?

The purpose of fetal four-dimensional color Doppler ultrasound is to check the growth and development of various organs and systems of the fetus. It is also called large row B ultrasound examination. It is generally recommended that large row B ultrasound be done during the 22 weeks of pregnancy to the 24 weeks of pregnancy. Because this gestational week, the development of various organs of the fetus has been basically formed, and many congenital defects can be found. In addition, fetal movement during this period is also more active, which is conducive to B ultrasound doctors observing the various organs of the fetus from different angles. In fact, this four-dimensional ultrasound can be done before 26 weeks, so there is no problem doing it at 25 weeks. However, if the number of weeks is too large, for example, it is not good to exceed 28 weeks. Therefore, it is recommended to do four-dimensional ultrasound at about six months.