Pain is often hard to identify due to evolutionary strategies in prey species to hide it, and once identified it is difficult to objectively measure. In the past, few products were available for agricultural animal pain control, and little differentiation was made between tranquilizers and pain control. Providing pain control to animals can have an economic benefit through improved healing, and an ethical benefit through improved animal welfare. For sows and gilts, tranquilizers can be used around farrowing for extremely agitated animals, manual aid and oxytocin can be used for long farrowings, and the treatment of lameness with analgesics are ways to reduce suffering. Suckling pigs should be aided around the time of birth, and any lameness, scour, or injuries treated. In nursery pigs, scour can be treated, meningitis may be helped by an anti-inflammatory, and lameness can be treated and the pig isolated to a recovery pen. Pain in finishing pigs can be handled by isolation to a recovery pen, and shipping out if no improvement is seen. Often the reduced stress and ability to rest in a hospital pen can reduce suffering caused by pain, and a veterinarian should be consulted for any available treatment or pain control.