Just like your toenails, horse hooves grow and need to be trimmed and maintained. Horses who live in the wild don’t need as much help with this because they walk and graze so much -- all of the movement keeps their hooves nicely filed and smooth on the bottom. It also helps them to develop tougher hooves that are more resistant to injury.
However, horses who live in barns need some help keeping their hooves in shape because they don’t walk as much as horses in the wild. Because of this, their growing hooves are not kept as neatly filed, and it becomes the responsibility of the person who owns the horse to make sure the horse’s feet are taken care of!
In addition to having the horse’s hooves trimmed and filed, a horse owner also sometimes needs to get horseshoes for his animals. Because they are not toughened as much by walking, horses who live in barns also need the help of a horseshoe to give more strength to their feet!