A member asked:

Friend got a concussion today and doesn't remember anything. is this normal?

4 doctors weighed in across 2 answers

Concussion: If he doesn't remember the events he needs to be evaluated by a physician.

Answered 8/17/2013

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Concussion: By not remembering anything do you mean about the events causing the concussion. Retrograde amnesia is loss of memory from the concussion backward. These usually fill in over time. Prograde amnesia is the failure of laying down memory traces from the concussion forward in time. These do not fill in because the memory was never recorder. Neither should effect memory in general.

Answered 8/30/2013

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