I stepped on a micro piece of glass from a shattered bulb. (~1-5mm in length). i pulled it out cleanly. small red dot closed instantly. how to tell if something is left? would it hurt if there was?

FBI glass: Small glass piece embedded in. Superficial wounds after complete removal may have pain but not a fb sensation if sensation persists may require exploration glass smaller than 2 mm not visible on x-ray good time to update tetanus if indicated.

Assuming you are: Not neuropathic then pain is a good guide. I would monitor the wound site over the course of the next few days for any sign of infection. Tetanus history should be considered, .