Extracorporeal shock wave therapy (ESWT) is a non-invasive drug free therapy for treating musculoskeletal problems, soft-tissue injuries and bone injuries in horses. ESWT is non-invasive, used to stimulate healing to return horses to a level of fully sound, useful activity without recurrence of disease. From outside the body (extracorporeal), the machine generates high-intensity shock or pressure waves, which pulse to a specific site within the injured tissue. Though its actual mode of action is still in dispute, it stimulates and accelerates the healing process, essentially combining an immediate analgesic effect with a reduction in inflammation, neovascularization (increase in blood flow and formation of new blood vessels) in soft tissue and osteogenesis (new bone formation) in bone. It can be used to treat various conditions, such as suspensory ligament desmitis, navicular disease, saucer fractures, bucked shins, bowed tendon, sesamoid fractures, stress fractures and vertebral spinal pain (kissing spine lesions).