For example, a sharp razor blade will create a smooth cut without leaving foreign particles in the wound. And although such cuts are painful, these unpleasant sensations usually disappear after a few minutes. And a sheet of paper, in addition to making a cut, also causes other small damages with the help of microscopic fibers in its structure.
In addition, during paper cutting, particles of these fibers and other foreign substances remain in the wound, which constantly stimulate pain receptors in the skin at the edge of the wound. In turn, the large number of receptors increases sensitivity, and a person feels pain even with minor injuries.
It is also important to note that because small cuts do not bleed much or at all, the blood does not “push” the foreign body out of the wound and new irritants enter it. All of this causes a person to experience more lasting pain, for example from minor bleeding wounds in other parts of the body.
