How to determine the gender of the fetus through observation of four-dimensional color ultrasound pictures? Four-dimensional color ultrasound is a high-level ultrasound technology that obtains high-quality dynamic color images through multiple scans. Professionals can determine the gender of the fetus by observing these images. So, what is the specific method for determining the gender of the fetus from four-dimensional color ultrasound pictures? 1. Observe the fetal urogenital system. During the four-dimensional color ultrasound examination, doctors usually first observe the fetal urogenital system, including the urinary system and