Chronic liver disease in dogs causes progressive organ dysfunction that, without management, leads to liver failure, hepatic encephalopathy, and significant suffering. Early detection and dietary management can slow progression considerably.
Chronic liver disease causes cumulative welfare harm that can remain subtle for extended periods before becoming apparent. The liver's large functional reserve means dogs may have lost significant hepatic tissue before signs emerge. Hepatic encephalopathy — neurological dysfunction from ammonia accumulation when the liver fails to process it — causes confusion, seizures, and altered consciousness that are distressing and frightening. Ascites from portal hypertension causes abdominal distension and discomfort. The progressive nature of liver disease without intervention means welfare deteriorates over time. Copper-associated hepatitis in predisposed breeds is particularly insidious — copper accumulates over years, causing chronic inflammation that is treatable if diagnosed before irreversible fibrosis develops.