Skip to main content

Cat acting oddly? 4 signs your cat has diabetes

Have you noticed that your cat is drinking a lot of water and urinating more? Is he having accidents outside the litter box or constantly begging for food and yet seems to be losing weight? These could all be signs that your cat has diabetes and should be examined by a veterinarian.

Feline diabetes, known as diabetes mellitus, is a condition that occurs when a cat’s body cannot produce enough insulin to balance blood sugar or glucose levels. Veterinarians say that diabetes in cats is similar to type 2 diabetes in people. When left untreated it can lead to long-term health problems and even death. Feline diabetes is diagnosed based on symptoms and the result of blood and urine tests. Diabetic cats will have elevated levels of glucose in their urine and blood.

According to experts at Banfield Pet Hospital, feline diabetes has become increasingly common, with about 1 in every 100 cats being diagnosed with the disease in their lifetime. The disease is most often seen in cats who are obese, on a diet high in carbohydrates, or over 8 years old, and in male cats who are neutered.

How is feline diabetes treated?

While there’s no cure for diabetes, affected cats can have a good quality of life with proper management. The key to controlling diabetes is to keep blood sugar levels near normal and avoid numbers getting too high or too low, either of which can be life-threatening, say experts at the American Veterinary Medical Association (AVMA). Weight loss, a change in diet, and insulin therapy may all be prescribed as part of a treatment plan. In an article published by PetMD, veterinarian Jennifer Coates also recommends increasing exercise for diabetic cats. This can be as simple as placing a cat’s food dish in out-of-the-way places, forcing him to move­­ more to reach it, or playing active games with him, like chasing toy mice or laser beams.

According to PetMD, with early, aggressive treatment of diabetes, many cats will enter a state of diabetic remission, meaning they can maintain normal blood sugar levels without insulin injections. If a cat has not entered diabetic remission within the first 6 months after diagnosis, he will likely require life-long insulin injections.

Cat getting injection at home.
Image used with permission by copyright holder

What does a diabetic cat look like?

The earlier the diagnosis, the better your diabetic cat’s chances for a longer, healthier life. The four signs that your cat may have diabetes include:

  • Frequent urination – this happens because the kidneys try to rid the body of excess glucose in the blood by producing more urine.
  • Increased thirst  the more your cat urinates due to diabetes, the thirstier he will be.
  • Increased appetite – diabetic cats may eat more because their bodies cannot break down and use glucose for energy.
  • Unexpected weight loss – lack of insulin makes a diabetic cat feel hungry but despite eating more the cat will lose weight.

Does diabetes in cats cause aggression?

Cats who aren’t feeling well may act agitated or aggressive toward people and other animals. Experts at Paws Whiskers and Claws Feline Hospital in Georgia say that diabetic cats can be “out of sorts due to physical discomfort.” They may hide and be less sociable, but it’s not out of spite; it’s because they aren’t feeling well. Also, what might seem abnormal behavior to us constitutes a survival instinct for cats, according to experts at the Georgia cat hospital. In the wild, sick or weak cats are potential victims and they change their demeanor to ward off potential predators.

If your cat goes from sitting on your lap to no longer wanting to be held or has frequent mood swings, diabetes could be the reason, and it’s worth a visit to the veterinarian to see what’s going on.

What are the final stages of diabetes in cats?

According to experts at Preventive Vet, the later signs and symptoms of diabetes in cats include:

  • Walking flat on the back of the hind legs – this is referred to as the “plantigrade stance” and happens because of damage to the nerves in the back legs.
  • Difficulty jumping onto high places – a cat’s activity level changes; he may no longer be able to jump onto furniture and may crouch and appear uncomfortable.
  • Vomiting, lethargy, and lack of appetite – when a cat reaches this stage, his health is most at risk.
Cat drinking from water dish.
Image used with permission by copyright holder

Eventually, diabetic cats who go untreated will develop diabetic ketoacidosis (DKA).  This happens when a cat’s body has had to rely for too long on burning fats for energy, rather than the glucose that cells require. Cats at this stage will not eat or drink and will become dehydrated and lethargic, say experts at PetMD. Eventually, they will go into a coma and will die if not treated with intensive medical therapy.

In conclusion

If your cat is diagnosed with diabetes, don’t panic or despair. Instead, sit down with your veterinarian and learn all you can about managing your cat’s health. Ask questions and be sure you understand exactly what’s involved, including how to give insulin shots. While initially giving your cat an insulin injection may seem overwhelming, over time the process will become routine for owners as well as for cats, say AVMA experts. Yes, taking care of a diabetic cat is hard work, but once his blood glucose is managed, he can enjoy a happy life.

Editors' Recommendations

Vera Lawlor
Contributor
Vera was the pet columnist for 201 Family magazine and has contributed pet and animal welfare articles to Bone-A-Fide Mutts…
What you need to know about your cat’s swollen lip – what causes it and how to help it heal
These are the most likely causes and best treatment options for your cat's swollen lip
Woman petting cat

Your sweet furry friend is a wealth of enjoyment and entertainment — from funny sleeping positions to those precious purrs. Cat behavior can be somewhat of a mystery for even the most dedicated kitty lovers, though, and those feline feelings can lead to physical manifestations that puzzle us.

If you've ever looked at your cat and noticed a swelling on the upper or lower lip, here's what you need to know: This common occurrence isn't something to worry about, but it isn't something to ignore, either. While your vet checks your cat's health, you can read up on this confusing condition. Here's what causes a cat's swollen lip.

Read more
Why do cats make biscuits? Here’s why your cat kneads
Cat kneading might look strange, but it has a simple explanation
A cat lies on her back kneading

The list of the most adorable things your cat does would have to include purring, meowing, and kneading. But while the first two have obvious causes, you might not fully understand why your kitty makes biscuits. Like so many aspects of pet ownership, you have to look at both the circumstances and your individual animal to get to the bottom of their instincts. The next time you wonder, "Why do cats make biscuits?" — think about their surroundings and nature to figure it out.
What is kneading?
This cat move gets its name because it looks like kneading dough or making biscuits. Generally, cats alternate between their two paws pushing against a soft surface. Not every feline will gravitate to this behavior, and it's a little different for each animal. Be mindful — for some cats, humans are the ideal kneading target. As usual, it all comes down to context, which means you need to pay attention to their knead to determine your cat's inner feelings.

Why do cats make biscuits?
Kneading can have a few different underlying causes, but many of them are about seeking happiness or contentment. However, occasionally, this action indicates something else.
Comfort
Does your kitty cat exclusively knead around and on you? That might say that they think you're comforting and soft. Careful though, pets can have sharp claws, so if you have a biscuit maker, get them trimmed by the vet.
Instinct
Most likely, your furry friend picked this up as a baby. Mikel Delgado, a cat behavior consultant, says, "It’s a likely throwback to happy behavior from the days of kittenhood. Kneading is what kittens do when they are nursing to encourage the release of milk from Mom."
Relaxation
When they're extra chill, you might wind up getting pummeled. Remember that your animal's behavior can be controlled with proper training. While it could be instinctual and a source of comfort, you can teach your pet not to knead on you by carefully not rewarding the behavior and redirecting as necessary when they attempt to rub you like dough.
Heat
If your animal has not been fixed, making biscuits could be a sign that they want a bun in the oven. This action could also be accompanied by spraying. Similarly, during pregnancy, excessive kneading can indicate that labor is approaching and you're about to have kittens.
Marking
Lastly, just like dogs, cats have scent glands in their paws, so they scratch or knead to release their particular aroma. The goal here could be to designate their territory or claim you in particular, especially if there are other beasts in the home.

Read more
Wondering how to keep cat warm in cold weather – here are 9 effective ways to help your pet stay toasty
Try these tricks to keep your cat from being cold
A Maine Coon cat reaches his snow-covered paw toward the camera.

There are many reasons why your feline fur baby should remain exclusively indoors, but it's all the more important to keep your cat inside during the winter months. A blanket of snow may look stunning, but it makes it difficult for outdoor kitties to find their way home. The potential for accidents also increases due to decreased visibility and the presence of black ice.

Even if your cat stays indoors all the time, you'll still need to take extra steps to keep her warm during the cool weather. Some homes are naturally drafty, and with snow and ice accumulating on utility lines, the chance of power outages increases as well. Wondering how to keep cats warm in cold weather? Here are nine useful tips to get you started. 

Read more