Pet Diabetes: Common Questions Answered

The first signs are increased thirst, more frequent urination, weight loss despite eating normally or more, and lower energy. Cloudy eyes can also develop. Read the [dog symptoms guide](/guides/signs-of-diabetes-in-dogs).

Common early signs include drinking and urinating more, larger litter clumps, weight loss despite eating well, a dull coat and lower energy. Some cats develop a flat-footed hind-leg walk. Read the [cat symptoms guide](/guides/signs-of-diabetes-in-cats).

Markedly increased thirst can happen when excess glucose draws more water into the urine. A sustained change should be assessed by your vet rather than assumed to be diabetes.

Diabetes can prevent the body from using glucose normally, so a cat may lose weight despite a healthy appetite. Other conditions can overlap, so arrange veterinary testing.

Diagnosis usually combines clinical signs with blood glucose and urine testing, sometimes repeated or supplemented with other tests. Your vet interprets the results in context.

Yes. A veterinary visit can temporarily raise a cat's glucose, which is why repeat testing, fructosamine, urine testing and calm home readings may all be useful. Read about [stress hyperglycaemia](/guides/stress-hyperglycaemia-in-cats).

It can be a sign of diabetic neuropathy, in which the back legs develop a crouched or flat-footed stance. Tell your vet about any change in walking.

Yes. Kidney disease, thyroid disease, urinary tract problems and other conditions can cause overlapping signs. Testing matters because symptoms alone cannot diagnose diabetes.

Many dogs and cats need insulin, but treatment depends on the individual diagnosis and veterinary plan. Never start, stop or change treatment without your vet.

Some cats may be candidates for prescribed oral treatment, while others need insulin. Oral SGLT2 medicines require careful veterinary selection and monitoring.

The schedule depends on the prescribed medicine and your pet's condition. Follow the exact plan from your vet rather than using a general schedule.

Most pets tolerate injections well when the technique and equipment are appropriate. Ask your vet to demonstrate and watch for any ongoing discomfort.

A glucose curve is a series of readings across a dosing interval that shows how glucose changes over time. Your vet uses the pattern alongside the wider clinical picture. Read the [glucose curve guide](/glucose-curves).

Fructosamine reflects average blood glucose over roughly the previous two to three weeks. It can be particularly useful when a single reading may be affected by stress. Read the [fructosamine guide](/guides/fructosamine-test-pets).

Some owners use human meters, but results and reference ranges vary by device and species. Use a meter and technique recommended by your vet.

Ketones build up when the body cannot use glucose normally and can be associated with diabetic ketoacidosis. Vomiting, food refusal, marked lethargy or illness needs immediate veterinary contact, even if glucose looks normal.

Choose food with your vet and keep meal timing, amount and composition consistent where possible. Read the [diabetic dog feeding guide](/guides/feeding-a-diabetic-dog).

Many cats benefit from an individually selected, consistent, protein-focused diet, but the right food depends on the cat and any other conditions. Read the [diabetic cat feeding guide](/guides/feeding-a-diabetic-cat).

Small, predictable treats may fit some care plans, but they should be discussed with your vet and counted as part of the routine. Read about [treats](/guides/treats-for-diabetic-pets).

Change food gradually and tell your vet because a change in intake can affect glucose control and treatment needs.

Cats often respond strongly to carbohydrate content because of their carnivorous metabolism. A suitable diet still needs to be chosen with veterinary guidance.

Use the manufacturer's analytical information and ask your vet or a veterinary nutrition professional to help interpret it. Labels do not always present carbohydrates directly.

Meal timing should be consistent with the treatment plan and your pet's normal routine. Your vet can advise what to do if appetite or timing changes.

Signs include weakness, wobbliness, trembling, confusion and collapse. Follow your vet's emergency plan and seek urgent help.

If your pet is conscious, rub honey or glucose syrup on the gums and contact your vet immediately. If your pet is unconscious or having a seizure, do not put anything in their mouth — take them to the vet straight away. Signs include weakness, wobbliness, trembling, confusion and collapse.

Never give a second dose to make up for a missed one. Too much insulin is far more dangerous than too little. Note what happened, carry on with the next scheduled dose as normal, and contact your vet if you are unsure.

Do not give another dose to compensate. A partial dose is safer than a double dose. Note what happened and when, and contact your vet for guidance rather than guessing.

Do not simply give the usual full insulin dose. Insulin without food can cause blood sugar to fall dangerously low. Contact your vet before giving insulin — this is common and they will advise on the dose.

Diabetic ketoacidosis is a serious emergency involving ketone build-up and metabolic illness. Vomiting, dehydration, food refusal, deep or unusual breathing, severe lethargy or collapse need immediate veterinary care.

Treat collapse, seizures, severe weakness, repeated vomiting, food refusal with illness, breathing changes or suspected hypoglycaemia or ketoacidosis as emergencies. Contact your vet or emergency practice immediately.

Many dogs can have a good quality of life with a consistent veterinary plan and attentive daily care. Outlook varies with complications and other illness.

Many cats remain comfortable and active with appropriate treatment, monitoring and routine. Some cats also achieve remission.

There is no single life expectancy because outcome depends on control, complications, underlying disease and overall health. Your vet can discuss your pet's individual outlook.

Some cats achieve remission and no longer need insulin for a period, especially with early effective management. Remission is not guaranteed or always permanent.

Remission is less common in dogs than in cats and depends on the underlying cause and individual circumstances. Discuss realistic expectations with your vet.

Cataracts are a common complication in diabetic dogs and can develop quickly. Raise changes in vision with your vet; treatment options may be available.

Diabetes has multiple possible causes and is not a simple measure of an owner's care. Focus on the next practical step and ask your veterinary team for support.

Costs vary with insulin or other treatment, food, monitoring supplies, consultations and complications. Use the [monthly cost estimator](/tools/monthly-cost-estimator) and ask your practice for an individual estimate.

A new policy will often exclude diabetes as a pre-existing condition, while existing policy terms vary. Check the wording directly with your insurer.

Store insulin exactly as the product label and your vet advise, protecting it from heat, light and freezing. Ask before travelling or if storage conditions are uncertain.

Travel planning should cover medication storage, routine timing, food, supplies and access to veterinary care. Ask your vet for an individual travel plan.

Give the sitter written treatment instructions, meal and monitoring routines, emergency contacts, your vet's details and clear instructions for what to do if your pet will not eat or seems unwell.