Bovine digital dermatitis is the most prevalent infectious cause of lameness in dairy cattle globally, causing significant welfare harm that is preventable through footbathing and early treatment.
Bovine digital dermatitis welfare impact is enormous in scale due to its high prevalence and the acute pain of active lesions. Active M2 lesions with eroded skin and exposed, inflamed dermis represent a severe pain experience - cows bearing active lesions show gait alterations, reduced feed intake, and behavioral changes consistent with significant pain. The disease's persistence in herds despite control efforts reflects its complex epidemiology and the challenges of maintaining effective footbathing across large dairy operations. Individual lesion scoring during routine hoof trimming allows targeted antibiotic treatment that provides rapid pain relief - one of the highest welfare-impact interventions available per treatment given the scale of the disease and the speed of response to appropriate treatment.