Companion Animals

Horse Headshaking Syndrome: A Poorly Understood Welfare Condition

Headshaking syndrome causes debilitating facial pain in horses and is frequently misdiagnosed. Understanding the condition improves welfare outcomes for affected animals.

Key Facts

Up to 4% of horses may be affected by seasonal or year-round headshaking
Trigeminal neuralgia is now understood as the primary cause in most cases
Symptoms include violent vertical head movements, snorting, and facial rubbing
UV light and wind trigger episodes in many affected horses
Workability and quality of life are severely impaired in serious cases
Percutaneous electrical nerve stimulation (PENS) offers some relief in controlled trials

Welfare Considerations

Headshaking causes acute episodic pain analogous to trigeminal neuralgia in humans - described as severe facial burning and electric-shock sensations. Horses cannot escape triggering stimuli in the outdoor environment. Many are misdiagnosed as naughty or training problems and subjected to inappropriate interventions before the neurological cause is recognised. Early diagnosis enables appropriate management and compassionate retirement decisions.

What You Can Do

Learn to recognise headshaking symptoms and seek specialist equine neurological assessment
Support research into trigeminal neuralgia treatments for horses
Advocate for headshaking syndrome awareness in equine welfare education programmes