The result of 4D ultrasound can be observed through the fetal head, internal organs, umbilical cord around the neck and other data, which need to be interpreted by the doctor. 1. Fetal head: generally under normal circumstances 4D ultrasound sheet written on the fetal head outline is complete, indicating that the fetal development is normal, if there are defects or deformation, considered to be developmental anomalies, then need to be further examined. 2. Internal organs: the development of the fetal heart, kidneys, spleen, stomach, large intestine, small intestine and other internal organs can be seen through the 4D ultrasound sheet, if there is no obvious abnormality, it generally means that the internal organs are clearly visible. 3. Umbilical cord around the neck: If there is an umbilical cord around the neck, then it will show that the umbilical cord is wrapped around the neck of the fetus. In clinical practice, it is generally not recommended for patients to try to interpret the potential problems behind the 4D slips by themselves, and should be handed over to a specialized physician for appropriate interpretation.