What Is a Fetal Ultrasound? ‌A fetal ultrasound is a test carried out during pregnancy that uses sound waves to create an image of your baby in the uterus. An ultrasound is a normal part of prenatal ...
A prenatal ultrasound test uses high-frequency sound waves, inaudible to the human ear, that are transmitted through the abdomen via a device called a transducer to look at the inside of the abdomen.