Companion Animals

Horse Headshaking Syndrome Welfare and Management

Headshaking syndrome causes severe facial pain and distress in horses, significantly impairing quality of life and rideability.

Key Facts

Photic headshaking is triggered by bright light, affecting trigeminal nerve function
Affected horses shake, flip or rub their noses uncontrollably - often described as like electric shocks
Prevalence is estimated at 1-4% of sport horses in affected regions
Seasonal occurrence (spring-summer) suggests photosensitivity as a primary trigger
Net masks, nose nets and cyproheptadine have variable effectiveness across individuals

Welfare Considerations

Headshaking syndrome is severely painful and distressing. Horses with this condition experience what owners describe as repeated electric shocks to the face. Ridden work may be impossible during severe episodes. Recognition as a genuine pain condition requiring management rather than discipline is essential, and euthanasia may be warranted in refractory cases.

What You Can Do

Consult a veterinary neurologist if your horse shows headshaking symptoms
Trial management options including nose nets and reduced light exposure
Do not discipline a horse for headshaking - it is a pain response, not behaviour
Support equine headshaking research through relevant veterinary charities