The tail of the Teddy String Dog does not have to be docked. It can be decided according to the dog's own situation or the owner's preference. If there is no requirement for the dog's tail, you can choose to keep the tail docked. If there is no requirement for the dog's tail, you can choose to dock the tail. If requested, you can also choose to have your dog’s tail docked. If you want to dock the dog's tail, you need to do it 3 to 5 days after the dog is born. It cannot be too late, otherwise the dog will feel pain.