Why do we instinctively want to rub/touch a bruise but not a cut?

Question

Whenever we get a bruise, we instinctively want to rub/touch it. When we get a cut, it stings so we don’t want *anything* to touch it.
Why do we want to rub/touch a bruise but not a cut? They’re both injuries but what makes them so different?

In: Biology

Answer 1

simply, because it only took us touching a cut once to learn it hurts more to touch it and to NOT want to do it again.