Laminitis causes intense, debilitating pain in horses through inflammation of the laminae connecting the hoof wall to the pedal bone. Prevention through diet and management is the most important welfare strategy.
Laminitis causes some of the most severe, incapacitating pain that horses experience. During an acute episode, affected horses stand with their weight shifted back, are reluctant to walk, and show obvious signs of extreme distress. The acute pain of inflammatory laminitis transitions to chronic laminar damage and potential rotation that can persist for months and may never fully resolve. Prevention is profoundly more important than treatment: dietary management that restricts non-structural carbohydrate intake, grazing management including muzzles and restricted access during flush pasture growth, and management of predisposing conditions including PPID and EMS are the most powerful welfare tools available. Horses with chronic, uncontrolled laminitis represent one of the clearest welfare cases for timely euthanasia.