Why do paper cuts hurt so much?

They say the first cut is the deepest, but baby we know why it’s so painful.

1st March 2016
Why do paper cuts hurt so much? (iStock)

Asked by: Rachel Cattini, London

At a microscopic level, paper is actually quite rough. A metal knife makes a clean straight cut, but paper acts like a saw blade and does a lot more damage to cells and nerve endings. Paper also leaves behind tiny fibres and chemical residues, which irritate the wound even more.