“Nerving a horse” is a surgical procedure where the nerve supply to the foot is cut. Usually the nerving procedure is reserved for cases of chronic foot pain that does not respond to therapeutic shoeing and potential coffin joint or navicular bursa injections
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People get concerned about the horse getting injured and rideability after being nerved since they can no longer feel their feet. This causes the danger that they could trip over something or get caught up in something without ever noticing or could worsen an injury due to not feeling it.
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