Diabetes Mellitus in Dogs: Welfare and Long-Term Management

Canine diabetes mellitus requires lifelong insulin therapy and careful dietary management, but with proper treatment most dogs achieve good quality of life and can live comfortably for years.

Key Facts

Canine diabetes predominantly affects middle-aged to older female intact dogs
Insulin-dependent diabetes is the most common form; dogs rarely develop Type 2 diabetes
Intact females are at higher risk due to progesterone effects on insulin resistance
Signs include polydipsia, polyuria, weight loss, and polyphagia
Diabetic cataracts develop in approximately 80% of diabetic dogs within 16 months of diagnosis

Welfare Considerations

Unmanaged diabetes causes severe suffering through hyperglycaemia, ketoacidosis, and associated weakness and nausea. Well-managed diabetic dogs can lead full and comfortable lives, though the condition requires significant owner commitment to twice-daily insulin injections and dietary consistency. Diabetic cataracts are a common welfare concern, causing vision loss that can be addressed surgically. Early diagnosis and owner education are essential for achieving good welfare outcomes in diabetic dogs.

What You Can Do

Seek prompt veterinary diagnosis if your dog shows increased drinking, urination, or unexplained weight loss
Learn correct insulin injection technique and syringe handling from your veterinary team
Feed measured meals at consistent times aligned with insulin administration
Discuss cataract surgery options with a veterinary ophthalmologist if vision is significantly impaired