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Diabetes in Dogs & Cats
Disease guide DogCat

Diabetes in Dogs & Cats

Diabetes mellitus is a long-term condition in which the body cannot control blood sugar, because it makes too little insulin or responds poorly to it. Glucose, fructosamine, HbA1c, urine and ketone tests can help your vet diagnose and follow it.

Signs owners may notice

  • Drinking much more water and passing more urine
  • Eating well, or more than usual, but losing weight
  • Low energy and weakness
  • Cloudy eyes or sudden poor sight in dogs, from cataracts
  • In cats, weak back legs or walking with the hocks (ankles) low to the ground
  • Repeated urine or skin infections
  • Vomiting, refusing food or sweet-smelling breath, which can mean an emergency

Signs alone cannot name a disease. If your animal looks unwell, see a veterinarian promptly.

How lab tests help

Blood glucose shows the sugar level at one moment. Fructosamine and HbA1c reflect the average over a longer time, which helps in cats, where stress can raise sugar briefly. A urine routine shows sugar and ketones in the urine, and BHB measures ketones in the blood. A registered veterinarian reads all results with the pet's signs and history.

What is diabetes?

Diabetes mellitus is a condition in which the body cannot control the amount of sugar (glucose) in the blood. Insulin, a hormone made by the pancreas, moves sugar from the blood into the body's cells for energy. In diabetes, the pancreas makes too little insulin, or the body does not respond to it properly. Sugar then builds up in the blood and spills into the urine, pulling water with it.

Most diabetic dogs make too little insulin. In cats, diabetes is often linked to being overweight, and the body responds poorly to insulin. Diabetes is more common in middle-aged and older pets. If it is not controlled, the body may burn fat for energy and make ketones. Too many ketones cause diabetic ketoacidosis, a serious emergency.

Signs to watch for

Common signs include:

  • Drinking much more water and passing more urine
  • Eating well but losing weight
  • Low energy
  • Cloudy eyes or poor sight in dogs
  • Weak back legs in cats
  • Repeated infections, such as urine infections

Vomiting, refusing food, weakness and sweet-smelling breath can mean ketoacidosis.

Which lab tests help

A Glucose Random (RBS) or Glucose Fasting (FBS) measures blood sugar at one moment. Your vet will tell you whether your pet needs to fast first. Do not stop food or change anything your vet has started unless your vet tells you to.

One high reading is not always diabetes. In cats especially, the stress of a visit can push sugar up for a short time. Fructosamine reflects the average sugar level over the past few weeks, so it helps tell true diabetes from stress. HbA1c is another long-term marker, and your vet decides which one suits your pet.

A Urine Routine checks for sugar and ketones in the urine, and for signs of infection, which is common in diabetic pets. Beta-hydroxybutyrate (BHB) - Blood Ketones (BHB) measures the main ketone in the blood and helps your vet check for ketoacidosis.

Your vet may also check the kidneys, liver and blood count, for example with the Vital Panel. The Diabetic Safety Panel groups glucose readings with HbA1c. After diagnosis, your vet may repeat glucose and fructosamine tests to check control.

A registered veterinarian reads every result with your pet's signs and history in mind.

When to see your vet

See your vet promptly if your pet drinks and urinates much more than usual or loses weight. A diabetic pet that vomits, stops eating, becomes very weak or collapses needs a vet the same day. So does a diabetic pet that shakes, wobbles or has a fit, which can be a sign of low blood sugar.

Testing in Bhopal

Pashupatinath Vet Lab is at C-200, C Sector, Shahpura, Bhopal, and provides free sample collection anywhere in Bhopal. From other districts, samples can be sent by courier, by bus parcel or through your local vet; call or WhatsApp +91 88175 01118 to plan it. The lab confirms the method, sample needs and reporting time when you book. Reports arrive on WhatsApp, by e-mail and in My Reports on the website.

Lab tests that may help

Packages

Diabetes care

Diabetic Safety Panel

Track blood sugar control with glucose and HbA1c.

  • Glucose Random
  • Glucose Post Prandial
  • + 1 more tests

₹600

Save ₹310 ₹910

Blood count plus liver, kidney, protein and sugar.

  • CBC
  • SGOT / AST
  • + 7 more tests

₹1,600

Save ₹240 ₹1,840

Common questions

How do I know if my dog or cat has diabetes?
The usual signs are drinking and urinating much more, and losing weight while eating well. Diabetes is confirmed with tests: blood glucose, a urine test for sugar and ketones, and often fructosamine, which shows the average sugar over the past few weeks. A registered veterinarian reads the results with your pet's signs.
What is a fructosamine test for cats and dogs?
A fructosamine test shows the average blood sugar over the past few weeks, not just at one moment. It helps your vet tell true diabetes from a short rise caused by stress, which is common in cats, and it helps check how well diabetes is controlled over time.
Can stress cause high blood sugar in cats?
Yes. A frightened or stressed cat can have a high sugar reading for a short time, even without diabetes. This is why vets often add a fructosamine test or a urine test for sugar before confirming diabetes in a cat. Your vet reads all the results together.
Does my pet need to fast before a blood sugar test?
It depends on the test and on your pet. Some glucose tests are done after fasting and others at any time, so follow your vet's instructions. Never stop food or skip anything your vet has started for a diabetic pet unless your vet tells you to, because this can be dangerous.

This guide is general information for animal owners. It does not diagnose or treat any animal. A registered veterinarian should examine the animal and read all test results together with its signs and history.

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