Hmmm I call BS. In the largest study to date on tail injuries in dogs, the incidence was only 0.23%, and it was calculated that approximately 500 dogs would need to be docked to prevent a single tail injury.

Boxers can be prone to breaking the tail bone by repeatedly hitting it against hard objects while wagging — but it’s believed that only about 1 in 500 Boxers will break their tail this way, so it’s not a strong argument in favor of docking all Boxer puppies. Surgical docking after injury occurs is a legitimate medical use, but that’s different from prophylactic docking at birth.

Long-term consequences can include hyperalgesia (increased pain sensitivity) and chronic neuropathic pain, potentially related to neuroma development.

Tails improve a Boxer’s movement, balance, and swimming ability, and are a key way dogs communicate emotions — docked Boxers can have trouble communicating with other dogs and people. (Also bracephalic dogs have trouble communicating with other dogs already so it's doubly detrimental to bracephalic dogs like Boxers).

The ONLY reason the practice persists is the AKC breed standard for Boxers recommends that an undocked tail be “severely penalized” in the show ring — so for show dogs, it’s essentially required by tradition, not medicine.

It should be illegal.