Recognizing pain in pigs requires validated assessment tools because pigs mask discomfort as a survival strategy, and accurate pain identification is the essential first step to effective welfare intervention.
Pain recognition in pigs is the foundational welfare skill for anyone working with this species, yet it is poorly taught in both veterinary and agricultural education. Pigs who appear stoic or merely withdrawn may be experiencing significant pain that trained observers would detect through facial expression changes, gait analysis, and behavioral pattern assessment. The commercial context of pig farming creates pressure to minimize treatment costs, making reliable pain recognition tools that demonstrate need essential for welfare advocacy with farmers who might otherwise miss or dismiss signs of pain.