Four dimensions a few months do most appropriate

about the middle of pregnancy, that is, the fifth month of pregnancy, 22 weeks when the basic can do four-dimensional. At the same time, when the amniotic fluid is sufficient, clear, fetal position timing, but also can do four-dimensional. Our country does not recommend that every pregnant woman to do four-dimensional. After four-dimensional doctors can find some fetal body surface abnormalities, for the future baby health has a certain significance. After four-dimensional pregnant women can observe the fetus in the abdomen, conducive to the establishment of mother-child relationship.