In fact, horseshoes are nailed to protect horseshoes. There is a thick stratum corneum in horseshoe, but this stratum corneum will be worn off continuously during the running of horse. Imagine that people's nails are actually the same as the cuticle on the horseshoe, but when the horse is running, the nails will be worn off constantly. No matter how thick the cuticle of the horseshoe is, it will always be thinned, so every step of the horse will be very painful after being thinned.

People's nails are easy to bleed and suffer when they are cut very short, let alone horses. After all, the horse is so heavy. But before the horseshoe is worn thin, people help the horse to trim and nail the horseshoe, so the horse wears shoes like a human when running, so that the horseshoe will not be worn out, but a nailed horseshoe, which can alleviate the pain of the horse.

Under normal circumstances, the cuticle of horseshoe is very thick, so nailing horseshoe actually doesn't hurt too much, so when nailing horseshoe, the horse doesn't act too aggressively, mainly because it doesn't hurt badly. If the action is painful, the horse will not operate directly when he is awake. At least give the horse some anesthetic. So it can be seen that the horse didn't feel pain during the operation.

Just because you nail a horseshoe doesn't mean you can leave it alone. Although the horse will not continue to wear horseshoes when running, the horseshoes of nails will still be worn. Just as people wear out their shoes when they walk, people have to change their shoes frequently, so horses must also change their horseshoes regularly. Therefore, it is necessary to trim the horseshoe of the horse every once in a while, and then nail a new horseshoe, so that the horse will be more comfortable when running, and there is no need to worry about the deformation of the horseshoe for a long time.