Sheep in farming systems routinely undergo painful procedures without adequate pain management, with disbudding, castration, tail docking, and mulesing causing acute and sometimes chronic pain in hundreds of millions of animals.
Sheep are prey animals that hide pain effectively, making it easy for producers to underestimate the suffering caused by routine procedures. Research documenting behavioral and physiological pain indicators in lambs undergoing castration and tail docking without analgesia is unambiguous: these procedures cause intense acute pain. The huddling, reduced locomotion, repeated posture changes, and elevated cortisol in procedural lambs reflect genuine suffering. The pain is preventable: local anesthetic and NSAID analgesics reduce pain indicators significantly when used. The primary barrier is economic convenience rather than genuine uncertainty about pain. The scale of untreated procedure pain in sheep - affecting hundreds of millions of animals - represents one of the largest preventable welfare failures in animal agriculture.