Stringhalt, or equine reflex hypertonia, is a neuromuscular condition that causes a gait abnormality characterized by involuntary, exaggerated upward movement of one or both of the hindlimbs. It looks like a jerk or hop, with the affected hindlimb(s) snapped up towards the abdomen. This generally occurs with every stride at the walk but can lessen at the trot and is usually absent at the canter. The degree of hyperflexion varies from mild to severe and is most obvious when the horse is turning sharply, backing, going down a slope, in the first few walking steps after standing still, or during gait transitions. A hopping gait may be exhibited in severe cases.

A drug that has been widely used in Thoroughbred racehorses in North America could increase the risk of sudden death, according to a new study. The research also identified other risk factors associated with sudden death, relating to the circumstances of the race and individual histories of the horses.

The equine eye is a complex and elegantly designed organ that functions to allow capture of light and conversion of light into an electrical stimulus, which is then transmitted to the brain and interpreted into vision. This function is reflected in the structure of the eye.

Soft tissue and skeletal injuries are of significant concern in sport horses. Fortunately, veterinary knowledge and technology are rapidly advancing to quickly and accurately diagnose and treat such issues. Medical imaging technologies have become powerful diagnostic tools. Each approach has its own strengths and weaknesses, but the modalities are often successfully used in combination with one another to accurately facilitate diagnosis and direct appropriate treatment.