Eli5: How do punches create ‘cuts’? Are they treated the same as if you’ve been cut with a knife?

Question

I was thinking specifically about boxing, so like no knuckles. Do other blunt objects cause cuts?

In: Biology

Answer 1

Squeeze a grape hard enough and it splits. Your face is meat, covered by skin, layered over bone. Bone is hard, so when you punch someone in the face hard enough, it squeezes the meat so hard the skin splits, just like a grape.