Bladder

Okay, kiddo, your bladder is like a little balloon inside your belly. When you drink liquids or eat foods with water, your body takes the liquid parts out and sends them to your bladder.

When your bladder gets full, it sends a signal to your brain that you need to go to the bathroom. Then you can go to the toilet and let all the liquid out of your bladder so it's not too full anymore.

It's important to always listen to your body when it tells you that you need to go to the bathroom so you don't get uncomfortable or get an infection. And it's also important to drink enough liquid to keep your bladder healthy and strong.