Diagnosis of diabetes in cats

The signs of diabetes mellitus suggest that your cat is a diabetic. The diagnosis needs to be confirmed by your veterinary surgeon.

Signs of Diabetes mellitus

Diabetes is one of many different diseases that can affect your cat. Other diseases can also produce the same signs. If any of the following apply to your cat, consult your veterinarian:

1. Drinks a lot of water
2. Urinates frequently
3. Is always hungry
4. Has lost weight despite eating more

Diagnosis of diabetes mellitus by your veterinarian

The above signs are suggestive of diabetes mellitus but they are also seen in other diseases. This is why your cat needs to be examined thoroughly by your veterinarian.

Urine sampling

Your veterinarian may first examine a urine sample to determine if there is glucose in the urine and/or a urinary tract infection.

Blood sampling

To confirm the diagnosis, your veterinarian will take a blood sample and determine the glucose or "sugar" in your cat’s blood.

If the blood glucose concentration is consistently higher than normal, it may indicate that your cat's pancreas is not secreting (enough) insulin and/or your cat’s body is "resistant" to the insulin its pancreas is producing. Your cat is then suffering from diabetes mellitus.

General examination

Your veterinarian will also check your cat’s general health (to rule out the presence of other diseases or infections). This is very important as infections and some diseases can be obstacles to the treatment of diabetes mellitus.