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What is hypersensitivity in horses?


  • All horses show normal nerve sensation or sensitivity in the legs. Where that sensation is increased beyond normal limits it is termed “hypersensitivity”.

    Overly sensitive legs could give a horse an unfair advantage [as they would be more careful to avoid hitting jumps] and are a concern on welfare grounds.

    Hypersensitivity can be caused by a range of normal things, including injuries and infections, as well as malpractice.

    No intentional hypersensitising has ever been proved [although it happened accidentally at the Beijing Olympics in 2008].

    FEI vets test for hypersensitivity by thermographic [thermal imaging to identify hot spots] and clinical examination [by palpation].

    If hypersensitivity is found a further examination is made at a later time to confirm the persistence of the condition.

    The ground jury then takes a decision on whether to disqualify the horse on welfare grounds. No appeal is allowed.

    This news story was first published in the current issue of Horse & Hound (15 September, 2011)

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