Laminitis is a highly painful and debilitating disease which can occur in the feet of horses.
The term ‘laminitis’ strictly means inflammation of the lamellar attachments between the hoof and the skeleton; this is however, an over‐simplification of the many events that happen within the foot when laminitis strikes.
In severe cases there is sufficient structural failure to cause the hoof wall to completely separate from the bone within the hoof. This can lead to loss of suspension of the skeleton and the development of severe pain and lameness.
Follow the link below to see an intro from world horse welfare.org