It is in French, but here is the report of a Surfing Medic that analysed all the surfing accidents (reports from hospitals) this summer in the southwest of France:
blog.surf-prevention.com/2015/04/08/accidents-de-surf-cote-basque-landes/In summary:
- 4.6 reports per day
- 20% are serious, of which: 20% more than 8 stitches, 30% strains, 25% broken bones
- 70% come to the hospital themselves, 24% by ambulance, 2% helicopter
- 75% are hits with a board (62% with their own board), of which 65% are injured by the fins
- leash is the cause of accident for 4%, but 50% of which are serious, always to the arms.
- board hits: 50% to the head 25% to the limbs (mostly upper). 66% are cuts, 20% bruises.
- crashes with other people: 13%, bottom: 18%
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50% of all injuries are to the head, 30% to limbs, 14% vertebral column
- 50% are cuts, 30% bruises, 16% strains, 5% broken bones.
So, a helmet and sanding your fins seem a very good idea...