Originally Posted by Bob19238

I was covering my head with my right hand while getting into my car, and then I accidentally hit the top of my hand on the door jamb. Luckily, my hand is perfectly fine (no bruise, swelling, redness, pain, etc.). The impact was likely cushioned by a rubber seal enclosing the jamb. Is it possible however that the force from the bump could have jolted my brain and caused a concussion?