To keep your body functioning properly, waste products and excess fluid must be removed on a regular basis. To do this, you have two bean-shaped kidneys… each about the size of your fist… located on either side of your spine just below your rib cage.
Your kidneys filter and return to the bloodstream about 190 litres of blood every day. In doing so they produce up to 2 litres of urine that contain the waste products your body needs to get rid of.