Skip to main content
  1. Home
  2. Cats

PawTracks may earn a commission when you buy through links on our site.

You don’t want to hear this, but cats may be bad for your health

Mary Johnson
By

We’ve shared our homes with cats for over 10,000 years, but our feisty feline companions still hold an air of mystery about them. From their hilarious antics to their regal appearance, there’s something about cats that makes them the most popular house pet in the United States. Unfortunately, bringing home that precious tabby you saw might not be the best idea for everyone.

In some cases – as much as it pains us to be the bearer of bad news – owning a cat could be the worst thing you can do for your health. We’ll give you the lowdown on why cats are bad for your health. (We’re sorry. It hurts us, too.)

Closeup of a woman's hand stroking a gray British Shorthair kitten's chin.

Can cats affect your health?

According to Dr. Greg Fricchione, a psychiatrist and the director of the Benson-Henry Institute for Mind Body Medicine (a Harvard-backed facility), “We do best medically and emotionally when we feel securely attached to another because we’re mammals and that’s the way we’ve evolved.” The bond you share with your cat can help you feel more emotionally satisfied, and it’s been scientifically proven to reduce your risk of suffering from a stroke or heart attack. Sadly, that’s not always the case. For some people, the risk of owning a cat far outweighs any potential health benefits. 

Recommended Videos

Who shouldn’t own a cat?

Some experts say that owning a cat can do more harm than good. If you fall under one of the following categories, you might want to think twice about adopting that adorable kitten you saw at the shelter. At the very least, we recommend speaking to your doctor about whether or not it’s safe for you to have a cat. Conditions that make cat ownership dangerous include:

Pregnant women

Cats can spread an infectious disease called toxoplasmosis, which ordinarily doesn’t cause symptoms in most animals – or even humans. Toxoplasmosis is spread in your cat’s feces after the cat ingests an infected animal or anything contaminated with feces from an infected animal. While toxoplasmosis won’t harm your cat, the simple act of cleaning a litter box can put a woman’s pregnancy in grave danger. With an estimated 15-40% of cats being exposed to toxoplasmosis at some point in their lives, you might want to hold off on adopting a cat if you are or are planning to become pregnant. 

A gray tabby cat clinging to a woman's hand while biting it.
Sozina Kseniia/Shutterstock

Those with compromised immune systems

If you’re immunocompromised due to a health condition or as a result of medication, owning a cat can be dangerous. Sharing your home with a cat puts you at increased risk of the following:

  • Diarrheal diseases, such as Giardia, Salmonella, Campylobacter, and Cryptosporidiumparvum: Salmonellosis is especially dangerous if you’re immunocompromised. With a high morbidity rate, this disease may cause sepsis, which is potentially life-threatening to immunocompromised patients. 
  • Tuberculosis: While incredibly rare – there have only been six documented cases of a patient contracting the tuberculosis-causing M. bovis bacteria from their cats in 150 years – a compromised immune system means your risk of infection is much higher than a healthy individual’s. 
  • Cat scratch disease (CSD): Commonly referred to as cat scratch fever, cat scratch disease occurs roughly three to 14 days after an individual has been bitten or scratched by an infected cat carrying the Bartonella henselae bacteria. Symptoms include exhaustion, fever, swollen lymph nodes, poor appetite, and headache. In rare cases, CSD can cause sepsis, swelling of the brain, and it can even infect the heart. In severe cases, cat scratch disease can be fatal.

Asthma

Asthma sufferers are painfully familiar with the lightheadedness and shortness of breath brought on by an asthma attack. If you have even a mild cat allergy, exposure to a frisky feline can trigger your asthma. Cats carry a protein called Felis Domesticus 1 (Fel D1 for short) in their urine, saliva, and dander. Exposure to this protein can set off allergy and asthma attacks. 

An amber-eyed black cat bites a woman's finger.
dashtik/Shutterstock

All hope is not lost

By now, you may be disheartened and wondering if you’ll ever be able to adopt a cat, and if you already have one, you might be worried you’ll have to rehome your furry companion. We have some good news – it’s not all gloom and doom. Studies show that children reared in a household with cats are actually less likely to develop asthma and allergies. Unless you have severe allergies or have been advised against adopting one by your doctor, you should be able to share your home with a cat. 

  • If you’re pregnant, immunocompromised, or allergic, we recommend taking several precautions if you already have cats (or you’re determined to adopt one anyway). 
  • Always wear gloves when cleaning the litter box or picking up hairballs. 
  • Bathe your cat frequently to reduce allergens, or consider adopting a hypoallergenic cat. Most importantly, never allow your cat to go outside or feed her raw meat, which could expose her to a multitude of disease-causing bacteria. 

If you’re very careful – and you have your doctor’s approval – you can reduce the risks of cat ownership.

Editors' Recommendations

Topics
Mary Johnson
Mary Johnson
Contributor
Mary Johnson is a writer and photographer from New Orleans, Louisiana. Her work has been published in PawTracks and…
Can cats suffer from mental health conditions the way dogs can?
What you need to know about your cat's mental health
A blue-eyed white cat sprawls out on top of a rug with a forlorn expression

As it turns out, man's best friend has quite a lot in common with humans. Just like us, dogs can suffer from mental health conditions like anxiety and depression. According to the Centers for Disease Control and Prevention, "1 in 5 Americans will experience a mental illness in a given year." With such staggering numbers, it's easy to understand why the self-help industry is booming. But what about cats? Are our feline family members similarly affected by mental health issues?
While dogs are typically more expressive regarding their moods, cats can be more difficult to read. A dog suffering from depression may refuse to play with his favorite toy, but what behaviors can you expect from your feline friend? Do cats suffer from depression and anxiety the way some dogs do? We'll take a deep dive into the world of cat mental health, so we can answer the question once and for all.

Can cats have mental illnesses?
In her 2014 book "Animal Madness," Dr. Laurel Braitman writes, "There is not a branch of veterinary science, ethology (the science of animal behavior), neuroscience, or wildlife ecology dedicated to investigating whether animals can be mentally ill." While we can't read our cat's mind, we can use their typical behavior to gauge sudden personality changes that might ring a few alarm bells.
Two commonly diagnosed mental issues in cats are obsessive-compulsive disorder -- often abbreviated as OCD -- and cat anxiety. In cases of OCD, you may notice your cat excessively grooming the same location on her body, which can lead to redness, swelling, skin irritation, and even hair loss. However, excessive grooming is also a symptom of anxiety, though anxiety is often accompanied by additional concerning behaviors, such as decreased appetite, incessant yowling, and even drooling.
Details are scant regarding exactly how many cats suffer from mental health issues, but the fact remains that your frisky feline can be affected by OCD, anxiety, or depression. In fact, it may surprise you to learn that cats can even have autism.

Read more
Does your cat sleep with you? You should be thrilled
Here's why your cat chooses your side as his favorite resting spot
Gray cat lying on a bed with a white comforter

There's something about getting into bed at night and having your pet join you that can't be matched. When your cat comes and curls up against you, it feels cozy and comforting. But why does your cat sleep with you, and is he doing it out of affection or just because it's comfortable?

The answer may be a mix. If your cat sleeps with you, chances are a few things prompt him to seek you out, but don't worry. Most of the reasons are pretty flattering. The more you know about your cat's sleep behavior, the better you'll be able to guess why he's chosen you to be his nap buddy.

Read more
Why cats can’t resist knocking things over and driving you crazy
If you're asking yourself 'why do cats knock things over?' start here to find out
Kitten sitting on the edge of an office desk

Cats are agile, acrobatic, and so incredibly aware of their surroundings; yet chances are you've also watched your destructive cat knock numerous items all over the floor. These furry scalawags seem to get a kick out of knocking items over, but when those items are breakable or cups full of water, this feline habit can become frustrating.

So why do cats knock things over, and what can you do about it? Scolding them only deters them for a moment, but this kind of chaos can't go on forever. Luckily, we're here to help. According to the Metropolitan Veterinary Center, there are three main reasons behind this destructive behavior -- so identifying which one you're dealing with is the first step toward finding a solution.

Read more