A nurse will ask you to pee right before the test. Then they’ll give you medicine to numb the area. They’ll slide the catheter through your urethra, take out the urine in your bladder, and measure how much was taken out.
There are a few things to think about with the catheter method:
- It may feel uncomfortable.
- It might make you more likely to get an infection.
- It’s rare, but it could injure your urethra.