Equine Laminitis: Chronic Pain and Welfare Management

Laminitis is one of the most painful and debilitating conditions in horses, causing inflammatory damage to the sensitive laminae supporting the hoof, with welfare implications for horses facing chronic or recurrent episodes.

Key Facts

Laminitis affects approximately 7-14% of horses annually; it is the second leading cause of death in horses after colic
The sensitive laminae connecting the pedal bone to the hoof wall become inflamed, causing intense foot pain
Severe laminitis causes rotation or sinking of the pedal bone through the sole - a welfare catastrophe requiring euthanasia
Common triggers include high-starch diet (pasture grass flush, grain overload), systemic illness, and equine metabolic syndrome
Pony breeds including Welsh, Shetland, and Dartmoor ponies have elevated laminitis risk compared to horses
Therapeutic shoeing, restricted pasture access, and dietary management are cornerstones of chronic laminitis management
PPID (Pituitary Pars Intermedia Dysfunction, Cushing's disease) is a major predisposing condition in older horses

Welfare Considerations

Laminitis welfare impact is severe and distinctive: the intense, stabbing pain of acute laminitis is so profound that affected horses lie down to relieve weight bearing, may have visible anxiety and distress, and show vital sign changes consistent with severe pain. The chronic phase following acute laminitis may involve persistent lower-level pain with acute flares, requiring ongoing pain management and environmental modification. The welfare decisions around laminitis are among the most challenging in equine medicine: horses with severe pedal bone rotation face ongoing, treatment-resistant pain, creating quality-of-life assessments that may favor euthanasia. Preventive management through appropriate diet and early metabolic disease treatment is the most welfare-positive approach.

What You Can Do

Restrict grass access for laminitis-prone ponies and horses during spring grass flush - use a grazing muzzle
Ensure appropriate body condition - obesity significantly increases laminitis risk
Seek emergency veterinary care for any horse showing acute foot pain or heat in the feet
Ask your vet about testing for PPID and equine metabolic syndrome in older horses or laminitis-prone individuals
Develop a management plan with your veterinarian for horses with chronic laminitis including pain monitoring protocols