The most important element in the management of concussion MUST ALWAYS be the welfare of the player - in both the short and long term.  
Concussion is a disturbance in brain function resulting from trauma that is transmitted to the brain either directly or indirectly.

There is no absolute need for direct head impact for a concussion to occur.

There are no structural changes and the changes that do occur are temporary and should recover spontaneously if managed appropriately.  
Complications can occur if the player is allowed to continue to play.

Symptoms include headache, blurred vision, dizziness, nausea, poor balance, fatigue and feeling “not quite right”. A concussed player may also exhibit confusion, memory loss and reduced ability to think clearly and process 
information. Loss of consciousness is not common and occurs in less than 10% of cases of concussion. It is important to understand that a player does not have to lose consciousness to have concussion.

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