Kidneys are shaped like beans and work in pairs but you can live (survive) with just the one.
They’re hidden away at the side of your body, just behind your rib cage.
Their job is to keep your blood clean, taking out any nasty waste, that is turned into a liquid called urine. Urine stays in your bladder and is released when you pass urine. Your kidneys also keep a check on your hormones. Hormones are a chemical that the body makes to help you to grow.
Did you know?
If one of your kidneys stops working the other kidney does all the work, which means that you can survive on one kidney!
