Fun Facts About the Urinary System You Didn’t Know

  1. Your kidneys filter all your blood about 60 times a day.
  2. A healthy bladder can hold as much liquid as a soda can.
  3. Urine’s yellow color comes from a pigment called urochrome.
  4. Ancient doctors used urine color to diagnose illness long before labs.
  5. Every kidney is roughly the size of a fist—but incredibly powerful.
  6. The left kidney sits slightly higher than the right, under the ribcage.
  7. You produce around 1.5 liters of urine daily, depending on hydration.
  8. The bladder’s elasticity makes it one of the body’s most flexible organs.
  9. Kidney stones can form in weeks but take years to grow large.
  10. Your urinary system processes more liquid each day than most water filters ever will.