The kidneys, two flat, bean-shaped, solid organs, are among the most important in our body. About 10 centimeters, they lie on each side of the spine near the waistline.

The kidneys remove unwanted substances from the body. It is just as important for the body to get rid of what it doesn’t need and can’t use as it is for it to take in what it needs. They also regulate the amount of water and other substances in the blood.