Horse Stringhalt Condition | Animal Welfare Hub

Stringhalt is a neurological condition in horses causing involuntary hyperflexion of the hindlimbs that varies from mild to severely debilitating.

Key Facts

Australian stringhalt is associated with ingestion of flatweed (Hypochoeris radicata)
Classic stringhalt has no identified dietary cause and may be idiopathic
Affected horses involuntarily jerk one or both hindlegs upward when walking
Severe cases may cause horses to fall when backing
Australian stringhalt often resolves when horses are removed from affected pastures
Peroneal nerve dysfunction is implicated in the pathophysiology
Muscle relaxants like mephenesin may provide temporary relief
Some horses develop permanent neurological deficits without recovery

Welfare Considerations

Stringhalt causes involuntary movements that interfere with normal locomotion and cause horses distress when trying to perform basic activities. Severe cases leave horses unable to walk comfortably or back up without falling, affecting their safety and quality of life. The unpredictable jerking can also cause secondary injuries. Horses with severe stringhalt may experience significant frustration and anxiety due to loss of normal movement control.

What You Can Do

Remove horses from suspected toxic pastures immediately if Australian stringhalt is diagnosed
Work with your vet on dietary management and supportive care
Monitor affected horses closely for worsening or secondary injury
Support equine neurology research into stringhalt mechanisms
Make informed decisions about return to work based on neurological recovery