The practice of shortening the tail in Doberman Pinschers is often referred to as tail docking. This involves surgically removing a portion of the tail, typically performed when the puppies are very young.
Historically, tail docking was believed to prevent injuries, especially in working dogs. There was a perceived benefit for dogs engaged in activities like hunting or guarding, where a long tail could be vulnerable to being stepped on, caught, or bitten. However, modern perspectives often question the necessity of this procedure, citing potential pain and the removal of a natural form of canine communication. The practice is now banned or restricted in many countries.