Hesperian Health Guides
Chapter 23: Problems of the Urine System
There are 2 kidneys. They make urine as they remove waste from the blood.
The bladder is a bag. It gets bigger as it fills with urine, and gets small after you pass urine.
When you pass urine, the urine goes down the lower urine tube (urethra) and comes out a small hole in front of your vagina.
There are 2 upper urine tubes (ureters). They carry the urine from the kidneys to the bladder.
This page was updated:22 Jan 2024