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Why do paper cuts hurt so much?

Why do paper cuts hurt so much?

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

Asked by: Rachel Cattini, London

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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.


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Authors

luis villazon
Luis VillazonQ&A expert

Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.

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