Pig Pain Recognition and Management

Pigs are stoic prey animals who conceal pain, making recognition and treatment challenging on farms. Evidence-based pain recognition tools and multimodal analgesia improve welfare outcomes.

Key Facts

Common painful conditions in pigs include lameness, tail biting wounds, ruptures, and surgical procedures
The Pig Grimace Scale is a validated tool for assessing pain in pigs based on facial action units
Pigs typically conceal pain as an evolved prey animal defense mechanism
NSAIDs such as meloxicam are commonly used analgesics in pig farming and have demonstrated welfare benefits
Stockperson training in pain recognition significantly increases detection rates and analgesic use on farms

Welfare Considerations

Pain management in commercial pig production remains inconsistent. Many painful conditions — lameness, tail injuries, hernias — are common on farms but do not routinely receive analgesia. The barrier is partly economic and partly the challenge of recognizing pain in an animal that hides it. Validated pain recognition tools like the Pig Grimace Scale give stockpeople objective criteria, moving assessment beyond subjective impression. Farms that invest in pain recognition training and implement routine analgesia protocols for predictably painful procedures report improved welfare outcomes and often improved production metrics.

What You Can Do

Learn the validated signs of pig pain using resources based on the Pig Grimace Scale
Advocate for routine analgesia protocols for all predictably painful farm procedures on pigs
Support veterinary research into more practical pig pain assessment tools for farm use
Choose pork certified to higher welfare standards that include pain recognition and treatment protocols
Raise awareness among pig farmers about the production and welfare benefits of pain management