How Do Horses Get Stringhalt?

Stringhalt is typically triggered when the horse is asked to move, either initiating the walk, turning, backing up or after a sudden stop. Excitement may trigger more exaggerated symptoms. In mild cases, limb flexion is only slightly affected and gaits above a walk may be normal.

What causes stringhalt in a horse?

The acquired form results from plant (often flatweed/false dandelion, Hypochaeris radicata) toxicity, often occurs as an outbreak in horses on pasture in late summer or fall, and is usually temporary. Although it is known as Australian stringhalt, it can occur worldwide and cases have been reported in California.

What plants cause stringhalt in horses?

Stringhalt is a condition in horses that causes exaggerated and spasmodic-like flexion of the hind legs through all gaits. Pasture Stringhalt has been linked to neurotoxins contained in hypochoeris radicata, a plant commonly found throughout the U. S. and often referred to as false dandelion, flatweed, or cat's ear.