Urethral swab. I needed to test for STIs and they inserted a cotton swab into my urethra. It's agonizing and it's not even the worst part, I was pissing razors for the rest of the day.
Kids, wrap your willie next time you go under the sheets, cause it's not worth it.
At least you need more anesthesia injection than other surgery
You can get kicked by ball or child birth and survive without pain killer
If you break your own liver, maybe the pain can cause neurogenic shock then died