Laryngeal paralysis
“Equine Laryngeal Paralysis, better known as laryngeal hemiplegia (LH) or ‘roaring’ is a common upper airway disease in large breedDomesticated animal breeds that have been specifically engineered by humans to grow as large as possible, as quickly as possible, to the detriment of their health. performance horses, including Thoroughbreds, Draft breeds, Warmbloods and Standardbreds…. This disease can be described as paralysis of one side of the larynx, almost invariably the left…”