A kidney ultrasound is an ultrasound sub-type that is conducted to screen the left and the right kidneys, along with the urinary bladder. 

This image diagnostics test also helps the doctors to evaluate the blood flow to the kidneys and help in diagnosing a host of kidney issues. 

It also provides detailed images of the kidneys and the surrounding structures that also include the ureters. 

Also known as renal ultrasound, kidney ultrasound is a painless and non-invasive diagnostic procedure that helps in the assessment of the kidneys’ shape, size, and location. 

The kidney ultrasound image diagnostic test works on the principles of sonar, the same technology used by navies to detect planes and ships.