Video on White Line Disease in Horses

Updated May 9, 2024

In this video, farrier Danvers Child explains White Line Disease, a fungal infection of the white line (or lamina) on the bottom of the horse’s hoof. This condition causes a widening of the white line, or a separation of the hoof wall from the sole.

This separation is then invaded by bacteria and fungi, leading to infection that progresses up towards the coronary band which produces a white or gray powdery material. White Line Disease is usually first noticed by the farrier during a routine trimming because only severe cases actually cause lameness.

SmartPak strongly encourages you to consult your veterinarian regarding specific questions about your horse's health. This information is not intended to diagnose or treat any disease, and is purely educational.