Dehorning is performed on millions of cattle annually to prevent injury — but the procedure causes significant pain that can be eliminated through breeding polled (naturally hornless) cattle.
Cattle dehorning represents a classic case of a routine welfare harm performed to prevent a different welfare harm. Horns cause injury during animal social interactions — but the dehorning procedure itself causes significant pain that is frequently unmanaged. The most elegant long-term solution is breeding polled cattle that never develop horns, eliminating the need for the procedure entirely. The polled gene exists naturally in many breeds, and gene editing technologies could accelerate its introduction into high-production dairy breeds. In the interim, mandatory analgesia for all dehorning and disbudding procedures would prevent substantial unnecessary suffering. The persistence of routine dehorning without pain relief in many countries reflects regulatory failure and cultural normalization of animal pain.