system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come hemorrhoids don't get infected more when they bleed, given their surroundings?

Is there something magical about butt-crack sweat or something?  Could we find some amazing anti-infection product from our oil glands back there?
gpt
Because that's a mucous membrane. Your body has a separate immune response to mucous membranes than it does to other places. It places extreme priority into stopping and adapting to infections in these areas, because of how vital they are.

Its the same reason you dont get an infection every time you floss too hard.