Excessive thirst, frequent urination, boost in appetite, unexpected weight loss and fatigue are some signs of diabetes in dogs, reports petMD. Thinning hair, hazy eyes, vomiting and depression can also indicate diabetes in pets.
Obese pets are more likely to become diabetic, which is why owners should watch out for diabetes symptoms if their pets are overweight, notes petMD. Pets with polyuria, an early sign of diabetes, usually experience more frequent urination, higher urine production than usual and accidental urination inside the house. Polydipsia, or increased thirst, also manifests early on when diabetes develops in dogs.
Diabetic pets suffer polyphagia, or unusual hunger, even after eating the usual amounts of food, explains petMD. Some pets maintain their weight despite eating more food, while others show sudden weight loss due to a faster metabolism associated with diabetes. Diabetic dogs tend to feel lethargic and like to sleep more.
Many diabetic dogs suffer cloudy eyes called cataracts, which eventually cause blindness if not properly treated, states petMD. Ketoacidosis occurs when a dog's body disintegrates liver fats and proteins due to insufficient levels of insulin. High amounts of ketones are harmful for dogs, and they often lead to depression. Ketoacidosis also causes vomiting, especially in older and female dogs. Miniature poodles and dachshunds are dog breeds that are prone to develop ketoacidosis.