4-D needs to be done a second time?

Most of the four-dimensional only needed to be done once, but sometimes the doctor found that the fetus was not in a good position in the process of doing it. If it was lying down and sleeping, it might not be able to see the fetal features. In this case, in order to help the pregnant woman see the fetal body more clearly, this situation needed to be done a second time. Pregnant women will be asked to go for a walk outside, or activity, in this case, after the fetus has moved, the face may turn around, in this case do the second four-dimensional can see.