Digital dermatitis is a painful infectious foot condition causing widespread lameness in dairy and beef cattle, requiring effective footbath programmes and individual treatment to protect foot health and welfare.
Digital dermatitis causes significant, often chronic pain that impairs welfare across multiple dimensions in affected cattle. The acute ulcerative lesions of active digital dermatitis are extremely painful — affected animals show marked reluctance to bear weight on the affected limb, reduced social interaction, impaired access to feed, and reduced lying time as lying transitions are painful. Chronic cases with proliferative "hairy" lesions cause persistent discomfort that may be subtler in expression but genuinely limits normal behaviour. Regular locomotion scoring of dairy herds provides a population-level welfare indicator that identifies farms with inadequate foot health management. Effective footbath programmes require attention to active ingredient concentration, bath length, cattle flow rate, and frequency of solution replacement — a footbath that appears to be in use may be providing inadequate protection if solution is exhausted or diluted. Individual treatment of identified cases should not be delayed; chronic untreated digital dermatitis is both a welfare harm and a source of ongoing environmental contamination that perpetuates herd transmission.