Horses will also rub their tails if their sheaths or udders need to be cleaned. All horses produce smegma. When enough smegma builds up, it can begin to irritate and itch your horse which leads to tail rubbing.
Although they’re a less common cause, ticks can cause irritation and rubbing if they attach to your horse’s tail, head, tailbone, anus, sheath or surrounding areas. Apply Equiderma Neem Horse Spray
to create an all natural barrier of protection.
Pinworms Internal parasites can also be a cause of tail rubbing.Consult with your veterinarian about a deworming program.