Ultrasound scans use high frequency sound waves, which are inaudible to our ears, to create images of the inside of our bodies.
A small device called an ultrasound probe emits sound waves that travel through fluid and soft tissues. The sound waves bounce back off the different tissues in different ways, producing echoes. Theses echoes are picked up by the probe and turned into a moving image displayed on a monitor. From this the radiologist or sonographer can see what is going on inside your body.
An ultrasound scan is painless and completely safe because it doesn’t use radiation.