system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why does an appendix need to be removed when infected and can't be treated?

It seems brutal (albeit life saving) for a part to be cut off if diseased. Surely there should be a way to treat it?
gpt
You have a cool red fire engine toy that has a white flag on top of it. One day the flag gets super dirty while you're playing with the truck. Now, you can clean the flag but because it's white there's no guarantee that it'll come clean. If you don't manage to clean all of the flag some of the dirt will get on the truck itself and will totally ruin it! But there's another option: because the flag doesn't really do anything you can just throw it away instead and then there's zero chance of bad stuff happening to your truck from the flag.