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What is the most common cause of death in cats?

Author

Emma Payne

Published Jan 06, 2026

The most common causes of sudden death in cats are heart disease and associated conditions. Feline cardiomyopathy or “heart muscle disease” and feline heartworm disease are the most common causes of sudden death in outwardly healthy cats. Both of these conditions frequently give no warning.

What is the number one killer of cats?

1... The number one infectious disease killer of cats in the United States today is Feline Leukemia Virus, or FeLV. FeLV destroys the cat's immune system so that he falls prey to anemia, cancer or infectious diseases that a healthy cat would not get. A simple blood test is 99% accurate in diagnosing the disease.

What do indoor cats die of?

Sadly, outdoor cats often die violently, usually by being hit by cars or eaten by predators. Indoor cats have much better prospects. Most indoor cats die of something like kidney disease, heart disease, or cancer, and these usually happen toward the latter stages of their lifespan.

What could be killing my cats?

The 7 Most Common Feline Poisons

  1. Poisonous plants. ...
  2. Laundry detergent, drain cleaner, toilet bowl cleaner, and other household cleaners. ...
  3. Human antidepressants. ...
  4. Flea and tick topical medications for dogs. ...
  5. Over-the-counter aspirin, baby asprin, naproxen, and ibuprofen. ...
  6. Onions, Garlic, Chives. ...
  7. Raisins and Grapes.

What is the average lifespan of a cat?

Indoor cats live on average 10-15 years, while outdoor cats live on average 2-5 years This handout is intended to help you sort out the pros and cons associated with each lifestyle so you can rest assured your cat will have both an enriched life and protection from environmental hazards.

33 related questions found

What predator kills cats?

Large predatory animals that prey on cats include cougars, wolves, and coyotes. Additionally, many small animals, including eagles, snakes (venomous and constrictors), hawks, and owls, hunt cats for food. Also, some dog breeds may pursue cats, but domesticated dogs rarely do so for sustenance.

Can cats sense their own death?

Vets and other animal experts believe that cats have some sense of their impending death, but they say that cats and dogs are simply following how they feel and using their instinct to protect themselves.

What are the signs of a dying cat?

5 Signs Your Cat Is Dying

  • Lack of Interest In Eating and Drinking. Like other animals, it's common for cats to lose their appetite toward the end of their lives. ...
  • Extreme Weakness. ...
  • Lower Body Temperature. ...
  • Changes in Appearance and Smell. ...
  • Seeking Solitude.

How do you know when a cat is going to die?

A dying cat may have an abnormal breathing pattern, with her respiratory rate speeding up and slowing down at random. She may even stop breathing for short periods of time and then start back up again.

What is the most common illness in cats?

Common Cat Diseases

  • Cancer. Cancer is a class of diseases in which cells grow uncontrollably, invade surrounding tissue and may spread to other areas of the body. ...
  • Diabetes. ...
  • Feline Immunodeficiency Virus (FIV) ...
  • Feline Leukemia Virus (FelV) ...
  • Heartworm. ...
  • High-Rise Syndrome. ...
  • Rabies. ...
  • Ringworm.

What are the signs of kidney failure in cats?

General symptoms of kidney failure in cats can include:

  • Dehydration.
  • Excess thirst.
  • Weakness.
  • Weight loss.
  • Lack of appetite.
  • Diarrhea (may contain blood)
  • Vomiting (may contain blood)
  • Depression.

Can you feel your cat's spine?

As they age, cats are not able to digest their food as well resulting in increased nutrition requirements. If their nutrition does not meet their requirements, they will lose muscle mass resulting in the ability to easily feel the bones of their spine and hips when petting them.

When a cat is dying How long does it take?

It usually takes about one to two weeks for a cat to die if it stops eating if they have a water supply. However, it may be more like three to four days without protein, even if they have enough water. This article will talk about why cats refuse to eat and how long they can go without eating.

Do cats go stiff before they die?

Feel for rigor mortis.

Rigor mortis, or the stiffening of the cat's body, sets in about three hours after the cat has died. With gloves on, pick up your cat and feel its body. If it is very stiff, this is a good indication that the cat has died.

Is it too soon to put my cat to sleep?

Most veterinarians, in my experience, tend to suggest that it's better to euthanize a week too early rather than an hour too late. My own experience has supported this stance for the most part. My first cat Feebee died in my arms while my vet was on her way to my house to put him to sleep.

Do cats know you love them?

The truth is, cats understand affection just like any other animal, and domestic cats might actually see us as their real-life mommies and daddies. A 2019 study revealed that kittens evince the same behavior towards us as they do their biological parents.

Do cats have a favorite human?

Cats tend to favor one person over others even if they were well-socialized as kittens. Cats are expert communicators and gravitate towards people that they communicate well with. Look for communication cues from your cat, such as your cat approaching you in search of food or petting.

What preys on cats at night?

Cat Predators

  • Birds of Prey.
  • Cougar.
  • Coyote.
  • Groundhogs.
  • Porcupine.
  • Raccoons.
  • Rats.
  • Scorpions.

Why are cats predators?

According to Vetstreet, “Unlike most other animals, cats do not make enough taurine, so they must consume it in their diet. Meat is the only thing that has enough taurine in it to meet the demands of a cat's body, which makes cats something called an obligate carnivore.”

Will coyotes eat cats?

Whatever the figures, coyotes are opportunistic animals and will hunt and eat cats when they live in proximity. Small dogs are also at risk, although these attacks are much less common.

Why is my cat thin at the back end?

As cats get older, they will start to lose weight, causing them to become thin in their hindquarters. In most cases, this weight loss is due to the loss of fat and is part of the natural aging process. Therefore, it is nothing to be too concerned about.

Is Tuna good for a cat?

Cats can be addicted to tuna, whether it's packed for cats or for humans. Some tuna now and then probably won't hurt. But a steady diet of tuna prepared for humans can lead to malnutrition because it won't have all the nutrients a cat needs. And, too much tuna can cause mercury poisoning.

Why is my cat skinny and bony?

There are two main causes for a skinny cat: Either they aren't eating enough, or they're expending more calories than they are taking in. They may not be eating enough due to stress, dental disease, nausea or a host of other reasons.

Are cats in pain when they have kidney failure?

Additionally, indications of acute kidney failure include an arched back or stiff-legged gait (a symptom that your cat's kidneys are causing pain), and either frequent or no urination.

How quickly does kidney failure progress in cats?

Types of Kidney Disease

There are two types of kidney failure in cats. Each has different causes, treatments, and outlooks. Acute renal failure develops suddenly, over a matter of days or weeks.