Pig Pain Recognition and Assessment

Accurate pain recognition in pigs is essential for welfare but is undermined by stockperson training gaps and the stoic nature of prey species.

Key Facts

Pigs experience pain from surgical procedures, disease, injury, and inadequate anaesthesia or analgesia
The Piglet Grimace Scale and Porcine Pain Scale provide validated tools for assessing pain in different contexts
Common painful procedures on farms include castration, tail docking, and teeth clipping — often without pain relief
Painful conditions including lameness, mastitis, and internal disease cause chronic suffering in commercial herds
Stockperson education in pain recognition is inconsistent — many farm workers have no formal welfare training

Welfare Considerations

Pig pain is widespread and often invisible. Pigs suppressed from expressing pain by evolutionary survival pressures make assessment difficult for even experienced stockpeople. The routine performance of surgical procedures without adequate pain relief is a significant welfare failure in many production systems. Mandatory pain management for all invasive procedures and formal stockperson welfare training are urgent priorities.

What You Can Do

Choose pork certified to standards prohibiting surgical procedures without pain relief
Support legislation requiring mandatory anaesthesia and analgesia for all pig surgical procedures
Advocate for compulsory pain recognition training for all farm workers handling pigs
Support research into alternative practices — immunocastration, rubber ring tail docking — that reduce pain