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How many kidneys do I have?
Most people have two kidneys. Kidneys are inside the body. They are about the size of your fist.
Where are your kidneys?
Kidneys are in your lower back.
What do kidneys do?
Kidneys are busy! They are like washing machines for the blood in the body. The kidneys filter the blood and take out all the waste in the blood. The kidneys send the waste on to the bladder...