The full name of four-dimensional color ultrasound is four-dimensional color ultrasound diagnostic instrument, which is currently the most advanced color ultrasound examination equipment in the world. It has been widely used in many obstetrics and gynecology hospitals and is deeply favored by expectant mothers. So, when should four-dimensional color ultrasound be done during pregnancy? Next, experts from Guangzhou Women’s Hospital will take you through it. According to obstetrics experts, under normal circumstances, four-dimensional color ultrasound during pregnancy has the following four stages: 1: Pre-pregnancy: from pregnancy to three months of pregnancy. Some experts also said that if the pregnancy is not three months old, that is, if a four-dimensional color ultrasound is performed before two months of pregnancy, it may have an impact on the health of the fetus. because