Diabetes mellitus in dogs requires daily insulin injections and careful dietary management. With appropriate treatment, diabetic dogs maintain excellent quality of life.
Canine diabetes causes significant welfare harm when uncontrolled — persistent hyperglycemia causes osmotic symptoms including excessive thirst and urination, weight loss despite good appetite, and vulnerability to secondary infections. The rapid development of cataracts in most diabetic dogs causes blindness that significantly reduces quality of life, though cataract surgery restores vision effectively when performed early. With appropriate insulin therapy, consistent diet, and monitoring, diabetic dogs typically achieve excellent quality of life and normal activity levels. Owner training on injection technique, recognition of hypoglycemia signs, and home glucose monitoring is essential for safe management. The welfare of diabetic dogs depends entirely on consistent owner commitment — irregular treatment causes dangerous glucose swings that are both uncomfortable and life-threatening.