Dog fighting is illegal in all 50 US states and many countries but persists as an underground activity. Understanding the welfare harms drives better enforcement and survivor rehabilitation.
Dogs bred and trained for fighting are subjected to systematic cruelty from early life — socialization is deliberately suppressed, aggressive behavior is reinforced, and injuries from training and fights go untreated. Fighting events cause injuries that, without treatment, become infected and lethal. Dogs rescued from fighting operations show high rates of trauma and fear responses but can often be successfully rehabilitated for adoption. The key welfare response is both enforcement against perpetrators and expert rehabilitation for survivors.