Laminitis: disease of the hoof in horses, cattle and other ungulates

Causes and risk factors

Multiple pathways can lead to laminitis. Common contributing factors include metabolic or endocrine disorders (insulin dysregulation, equine Cushing’s/PPID), sudden access to high-energy pasture or grain, severe systemic illness or toxin exposure (for example colic or sepsis), mechanical overload of a limb after injury, and some drug or steroid reactions. Obesity, poor hoof care and rapid changes in diet increase risk.

Pathophysiology and clinical signs

Laminitis involves inflammation and weakening of the laminar junction between hoof capsule and coffin bone. As the attachment fails the distal phalanx may rotate or displace downward (sinking), altering hoof shape and biomechanics. Early signs include reluctance to move, shifting weight, a stilted gait, increased digital pulses, warmth in the hooves and sensitivity to hoof testers. Chronic cases show distorted hoof rings, abnormal growth and, in worst-case scenarios, penetration of bone through the sole.

Diagnosis

Diagnosis begins with a clinical exam and history. Vets use observation, hoof testing and palpation of digital pulses, and often radiography to evaluate the position of the coffin bone and degree of rotation or sinking. Laboratory testing may assess systemic illness or endocrine status (insulin, ACTH). Prompt veterinary assessment helps determine severity and plan treatment.

Treatment and management

Immediate management focuses on pain control, limiting movement, and reducing further laminar damage. Typical measures include stall rest, nonsteroidal anti‑inflammatories, cryotherapy in the early acute phase, corrective trimming and mechanical support (pads or special shoeing) to redistribute load. Treating underlying causes—resolving sepsis, dietary changes for insulin regulation, or medical treatment for endocrine disease—is essential. Severe, irreversible hoof failure may necessitate euthanasia in individual animals when welfare cannot be restored more information.

Prevention and prognosis

Prevention emphasizes identifying at‑risk animals, careful feeding and pasture management, maintaining healthy body condition, routine farriery and rapid treatment of systemic disease. Prognosis varies widely depending on cause, promptness of treatment and the degree of structural damage. Many animals recover with intensive care, while some progress to chronic lameness or require euthanasia if pain and function cannot be controlled.