When can pregnant women do four-dimensional ultrasound?

Four-dimensional ultrasound examination is carried out in the second trimester of pregnancy, also known as abnormal examination, is to rule out fetal abnormalities. Because in the second trimester of pregnancy when the fetus is not particularly large, in the uterine activity space is relatively sufficient, conducive to doctors to observe the development of various parts, can check more accurately, so in the second trimester. If the number of weeks is relatively large, see the results of the relative accuracy is not so high. Do four-dimensional ultrasound when you need to pay attention, do not eat milk, beans easy to produce gas food, may affect the observation effect. But it is not to say that do four-dimensional ultrasound when you need fasting, is not the need for fasting, you can eat at home after the ultrasound examination, but diet is the need to pay attention.