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Early Learning

Know your body – Bladder

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BLADDER

Pee is one of the first body fluids a kid learns about. You probably learned about pee (also called urine) when you were 2 or so when you started using the toilet instead of diapers. Now that you’re older, you can understand much more about the amazing yellow stuff called pee.

All-day long, a small stream of urine trickles down each kidney.

It’s collected in an organ called the bladder, which stores the urine until you go to the toilet.  The amount of urine the bladder holds varies from person to person – some people’s bladders can hold a lot of urine, some people can’t.

Your bladder stretches as it fills up. This sends a signal to your brain, making you want to go to the toilet. An adult’s bladder stretches from the size of a plum to the size of a grapefruit and can hold about 500 ml (1 pint) of urine. Your bladder is about the size of an orange when it’s full.

The bladder has a waterproof lining to stop it from leaking. Urine leaves through a tube called the

The urethra, which is normally kept shut by two muscles.

You might not think much about peeing or your urinary tract, but here’s how you can help keep everything flowing as it should:

  • Drink enough fluids. There’s no magic about it, but be sure to drink plenty of water, especially when it’s warm out or you’re exercising and playing.
  • Go to the bathroom when you need to go. Holding too long isn’t good for your urinary tract.