If the kidneys are actually inflamed and especially sensitive

If the kidneys are actually inflamed and especially sensitive

To examine the kidneys by pressure the pressure should be brought to bear over these organs. The kidneys lie beneath the ends of the transverse processes of the vertebrae of the loins and beneath the hind-most ribs. If the kidneys are actually inflamed and especially sensitive, pressure or light blows applied here may cause the horse to shrink.

Fonte: Diseases of the Horse