has found that the hoof's skeleton may contain remnants of the horse's other digits. Disorders There are several disorders and injuries that can affect the equine hoof. Laminitis and navicular disease are two of the most serious. Thrush and white line disease, common bacterial infections, can become serious if left untreated. Quittor, an infection of the lower leg that can travel under the hoof, is also sometimes seen, although most commonly in draft horses. Hoof wall separation disease is a genetic hoof disease. Quarter cracks are vertical splits in a hoof wall, most commonly seen on the inside of the front hooves or the outside of the hind hooves. They can result from poor shoeing and management practices, natural hoof conformation, or injuries to the leg and hoof. See also Deciduous hoof capsule Limbs of the horse References External links American Farrier's Association American Farrier's Association How a Horse Hoof Grows from eXtension Horse anatomy Farriery de:Huf ru:Копыто