Routine tail docking of piglets addresses tail biting but treats the symptom rather than the root cause, which lies in inadequate environments.
Tail docking causes acute pain at the time of the procedure and may result in chronic neuroma pain at the wound site. The practice is performed to prevent tail biting, which itself causes severe welfare harm through wounds and infections. However, tail biting is not inevitable — it is a behavioral disorder that emerges in response to inadequate environments that deny pigs the ability to root, explore, and exercise. Countries and regions that have successfully reduced tail docking rates have done so through provision of manipulable materials and environmental enrichment. Addressing the root cause through enrichment improvement is both more welfare-positive and more effective than docking.