The main purpose of cutting Teddy's tail short is to avoid injury and breakage of the tail, because Teddy is relatively small, but its tail bones are very slender. If the tail is allowed to continue to grow, it is likely that the bones will be unable to withstand it. If the tail is too long, it will break, or if the tail is too long and drags to the ground, friction will occur and damage will occur. Over time, it can easily lead to infection, and even death in severe cases. Next, Teddy has a more aggressive personality, and the tail can hide its provocative behavior and reduce unnecessary fights.