You will be asked to lie on an examination couch. The lights may be dimmed so that the images on the screen are as sharp as possible.
The Clinician will put some gel on your skin. This allows the sensor to be moved around more easily and helps produce sharper images.
Depending on where you have the scan, you may be asked to take deep breaths and to hold your breath for a few moments. For a bladder scan, if your bladder is not full enough, you may be asked to have another drink.
The Clinician will slowly move the sensor over your skin while looking at the images on the screen. They will record some of these to study in detail later. When it is all done, the gel will be wiped off before you leave.