Hand -

: Tiny paper fibers and chemicals used in manufacturing (like bleach) can stay in the wound and irritate the dermis. Identifying a "Deep" Cut Paper Cuts: Why They Hurt, How to Treat Them, and More

: Because paper cuts often don't bleed much, they don't form a protective scab, leaving nerve endings exposed to air and constant irritation. : Tiny paper fibers and chemicals used in

Even shallow paper cuts hurt intensely due to several biological and physical factors: How to Treat Them