Why do parents and doctors get worried if a child gets head or spinal injury

If somebody gets a head injury, they may be susceptible to a concussion, brain swelling, bleeding within brain tissue, skull fracture, tissue damage, etc. 
A spinal injury could cause things like, paraplegia, motor skill loss, nerve damage, etc.

Let's say you are in a sport and you have a back injury and its serious that can be the end of your career for sports ,you may never recover,you can becomes paraylzed

Answer personal health record (phr); electronic health records (ehrs); ///

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