When any bone/muscle of body is hit badly by a blunt object, it hurts pretty bad of course for some time. But, after some time the pain goes off completely or to some extent.
Then, if we touch the wounded spot, the terrible pain returns.
If the pain goes off as the healing process of severed tissues, blood capillaries, then why does it return at the event of touching?
My reasoning: I think there is a sophisticated pain mechanism responsible for this phenomenon.Firstly, pain warns our nervous system to be cautious against any new injury. As time goes on, sensory adaptation diminishes the pain. But the event of touching is a new pressure for the blunt wound.So, the pain comes back again. But, I need well-referenced answer to support my view.
Papers: The most relevant paper I've found till now: 1 which is behind paywall