Sebum Plug or Keratin Plug (Not an insect)

Human skin hair follicles (pores)

N/A (Non-living organic matter)

Accumulates within skin pores and hardens; often expelled manually or naturally, resulting in the bulbous shape with a 'tail' shown in the image.

Harmless biological material often mistaken for parasites or larvae; indicates clogged pores but poses no parasitic risk.