What is the purpose of boogers?

Question

What is the purpose of boogers?

Answer 1

nose boogers are simply the dried up form of secretion from your nose. Our skins exude oil and other stuff, it just happens that in our noses they tend to clog up unlike our normal skin where they slough off or rub off very easily. If you wash your nose regularly you wouldn't find too many nose boogers.

Sometimes our nose exude other stuff besides the oils - like when we have a cold, it would exude slightly more watery stuff - these are usually in response to potential "invasion" by foreign bodies (or what the bodies think may be bugs and such) - this "watery" liquid which dries rather quickly inside our noses help to deliver antibodies that can combat the potential pathogens, When everything dries up - you get boogers.

Answer 2

it's mucus that has hardened around germs, bacteria or dirt/dust.

Answer 3

They're germs that have been extracted from your body.