There are five main reasons why dogs have their tails docked:

First, in order to avoid injury to the dog’s tail, some shepherd dogs and search and rescue dogs, in order to avoid injury to their tails while working, Therefore, the tail will be docked;

Second, avoid fractures. Many small dogs have thin tails that are easily fractured. Tail docking is needed to protect the dog;

Third, Clean and hygienic, after docking the dog's tail, it can prevent the tail from being infected with bacteria or parasites;

Fourth, hiding emotions. The tails of fighting dogs and hounds can easily reveal emotions, so tail docking is needed to hide emotions. Avoid being attacked;

Fifth, beautiful. Tail docking can make the dog look more energetic.