Teddy does not have to have a broken tail, but a broken tail Teddy looks better. People break the tails of newborn Teddy dogs to avoid tail injuries when they are out and about and to prevent bites when they are playing with their own kind. Teddy can hide his emotions and is less likely to get outside germs when his tail is broken. A Teddy with a broken tail looks more refined and beautiful. If the owner thinks that it is good for the Teddy to have a tail, then it is possible to choose not to break the tail of the dog.
