Diabetes in Pets
Diabetes in Pets - Diagnosis & Treatment in Dogs and Cats
At Cara Veterinary Group in Dublin 15 (Ballycoolin) and Dublin 7 (Phoenix Park Gate), we diagnose and manage diabetes mellitus in dogs and cats. Early detection and proper treatment can greatly improve your pet’s quality of life and help prevent complications such as blindness, weight loss, and dehydration.
BOOK A CONSULTATION • Call 01 885 3253 • Join our Pet Healthcare Plan for ongoing preventative care
What Is Diabetes Mellitus?
Diabetes mellitus is a condition where the pancreas does not produce enough insulin, or the body cannot use insulin properly. This results in high blood sugar (glucose) and a range of health problems that can affect your pet’s energy, weight, and vision.
When insulin levels are inadequate, glucose builds up in the bloodstream instead of being used for energy. The kidneys try to flush out the excess sugar, which leads to increased urination and thirst — often the first signs pet owners notice.
Diabetes in Dogs
Dogs typically develop diabetes due to permanent loss of insulin-producing cells. This form of diabetes is usually lifelong and requires regular insulin injections to maintain stable blood sugar.
Common Symptoms in Dogs
- Drinking and urinating more than usual
- Weight loss despite a good appetite
- Cloudy eyes or sudden blindness from cataracts
- Low energy or sleeping more
- Recurrent infections (urinary, skin, or dental)
Without treatment, diabetic dogs may develop cataracts that cause rapid blindness. Early stabilisation can prevent or delay this, so prompt veterinary care is essential.
Diabetes in Cats
Cats can develop a reversible form of diabetes if treated early and aggressively. With proper insulin therapy, diet control, and monitoring, some cats go into diabetic remission and may not need long-term insulin.
Common Symptoms in Cats
- Increased thirst and urination
- Weight loss with normal or increased appetite
- Greasy or unkempt coat
- Lethargy or reduced grooming
How We Diagnose Diabetes
We use in-house blood and urine tests to confirm diabetes quickly and accurately. These tests check glucose levels and rule out other causes of similar symptoms.
- Blood glucose test: measures sugar levels in the blood
- Urine test: checks for glucose and ketones
- Fructosamine test: evaluates long-term glucose control
Treatment & Ongoing Management
Managing diabetes requires close cooperation between you and your vet. We will create a tailored treatment plan that includes:
- Daily insulin injections (for most dogs and some cats)
- Prescription diabetic diets
- Home monitoring of appetite, thirst, and activity
- Regular blood glucose checks and weight monitoring
- Adjustments to medication as needed
Initial stabilisation may require several rechecks as insulin doses are adjusted. Once stable, most pets return to a happy, healthy life with careful management.
When to Call Your Vet
Contact us immediately if your pet shows any of the following:
- Sudden vision changes or cloudiness in the eyes
- Weakness or collapse
- Vomiting or refusal to eat
- Excessive thirst and urination
Book Your Appointment
- This service cannot be booked online. Please call 01 885 3253 and ask for James the Vet for advice and scheduling.
- If your pet is unwell, book an Illness Consultation online or by phone.
Our Locations
Cara Veterinary Hospital - Unit 233, Blanchardstown Corporate Park 2, Ballycoolin, Dublin 15 (D15 Y384)
Cara Veterinary Clinic - 1A North Circular Road, Phoenix Park Gate, Dublin 7 (D07 HE48)

