Eli5 : How does your body push out unnatural stuff, like gravel in a wound or a splinter in your thumb?

Question

Eli5 : How does your body push out unnatural stuff, like gravel in a wound or a splinter in your thumb?

In: Biology

Answer 1

I found a similar post from a few years ago: https://www.reddit.com/r/askscience/comments/13mb49/what_does_the_body_do_with_foreign_objects_that/?utm_source=share&utm_medium=ios_app&utm_name=iossmf

Essentially the foreign object will trigger an autoimmune response and “push” it out as it recognizes it as something that’s not supposed to be there.