Not a bug (Likely Sebum Plug or Dead Skin)

Human skin (pores and hair follicles)

N/A (Biological waste product)

This is inanimate biological matter, often expelled from skin pores or picked from the scalp. It is frequently mistaken for a parasite or mite due to its irregular shape and the psychological sensation of 'crawling' that sometimes accompanies skin conditions.

Harmless biological debris. However, picking at skin to remove them can lead to irritation or infection. They are a natural product of the skin's oil production.