Black Desert Horses are force multipliers in the game. A horse helps in transportation and is also a great aid in combat and getting life skills. However, do you know what happens when a horse dies?
A horse can die when attacked or by drowning in the water. Horses can swim up to a certain depth, but they cannot swim in deep waters. If the horse dies, it is a death count in the mount information. You can reclaim the horse at the stable.
The only loss that occurs on a horse death is the trade items in your inventory. The other thing that matters is taming, and breeding is affected. However, you can always buy a new horse, tame it or reclaim it.