What does four-dimensional color Doppler ultrasound mean by breech position?

4-D color Doppler ultrasound suggests breech presentation refers to breech presentation, which is the most common abnormal fetal position, accounting for 3% to 4% of the total number of full-term births. It is more common in multiparas, because the fetal head is larger than the fetal breech, there is no obvious deformation after delivery, and it is often difficult to deliver. In addition, umbilical cord prolapse is more common, so that perinatal mortality is relatively high, which is 3 to 8 times that of occipital presentation (normal fetal position). There are six fetal positions for breech presentation with sacrum as the indicator point. If the color Doppler ultrasound is done before 30 weeks of pregnancy, hip presentation is more common, and after 30 weeks of pregnancy, it can naturally turn into head presentation. The above health science knowledge is for reference only.