Well, there is surely the possibility of something being in its mouth (All young things love to stick ungodly things in their mouths... or perlite)

How exactly does one go about tweezering something out of a hatchlings mouth or even finding out if there is something to tweezer? I've never really had to do anything like that to any of my snakes. Is there a way to get their mouths opened first or do you jack them opened with the tweezers? That may sound completely ignorant... but foolish questions must be asked to prevent foolish mistakes.