Do you need to hold your urine to do four-dimensional

Pregnant women, go to the hospital to do four-dimensional ultrasound examination is not required to hold urine. This time the fetus in the womb amniotic fluid condition, fetal size is relatively moderate, directly through ultrasound examination, can be more clear understanding of fetal development there is no abnormal phenomenon, do not need to hold urine after the examination. It is recommended that women can make an appointment before doing four-dimensional color Doppler ultrasound. After the appointment, they can go to the hospital to do this four-dimensional color Doppler examination. After four-dimensional ultrasound examination, they can understand some abnormalities on the fetal body surface and also understand some of the development of fetal internal organs. During pregnancy, they can also find some problems in time and solve them in a timely manner.