Ultrasound scans involve no needles or injections and they are usually painless.
They are less expensive than some other imaging methods
It uses no ionizing radiation
Gives a clear picture of soft tissues that would not normally show up well on X–Ray images.
It doesn’t cause health problems and if medically indicated it can be repeated again.
It has been used to evaluate pregnancy for nearly forty years. There has never been any evidence to suggest that there is harm to the patient, embryo or fetus.
Doctors are provided with lots of useful information from the ultrasound.