Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Is My Cat Sneezing All of a Sudden? 6 Vet-Reviewed Reasons

Share

tabby cat sneezing

Has your beloved feline friend suddenly started sneezing as if there’s no tomorrow? Cats sneeze for various reasons. Your kitty could have gotten wind of something that is disrupting their delicate sense of smell, or they are allergic to something in their environment. Either way, intermittent sneezes are typically not a major cause for concern unless your pet also starts avoiding food, losing weight, or becoming lethargic.

While benign nasal polyps or a malignant tumor could be underlying causes of spontaneous sneezes, keep reading to discover six common reasons that your cat might be sneezing all of a sudden.

divider cat faces 2 oct 2024

The 6 Possible Reasons Your Cat Is Sneezing All of a Sudden

1. Upper Respiratory Viral Infections

Cat sneezes
Photo Credit: ZlataMarka, Shutterstock

Cats, just like people, can suffer from upper respiratory viral infections. Cats that have recently been adopted from shelters or have been hospitalized and exposed to other cats are particularly susceptible to these infections. The most common culprits include feline herpes virus and feline calicivirus, both of which cause kitties to get stuffy and sneeze.

As a general rule, there’s not much you can do to “cure” a feline upper respiratory viral infection. Your companion’s body will need to do the work; it’s no different from the misery that ensues when you catch a cold and have to deal with a clogged nose and scratchy throat until your body gets into gear and takes care of business. Vaccinating your pet is the best way to prevent respiratory illnesses from developing.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

Preventative wellness PGV mention keep cat healthy Preventative wellness PGV mention keep cat healthy mobile

2. Bacterial Infections

Bacteria can also cause sneezing, nasal discharge, and watery eyes associated with upper respiratory infections. In fact, it’s pretty common for upper respiratory infections to start as common viral issues and then progress into bacterial infections as your cat’s nasal and sinus passages become inflamed. Bacterial infections are often accompanied by fever and may require systemic antibiotics to resolve.

Bacterial dental infections are a common cause of sneezing in cats. Cats with serious dental issues often suffer inflammation that extends into the nasal and sinus cavities, causing sneezing and other signs that often resemble upper respiratory infections.


3. Allergies & Irritants

cat smelling a sunflower
Photo Credit: scarlett1991, Pixabay

Just like humans, cats often sneeze when exposed to substances that irritate delicate nasal and sinus membranes like smoke, perfume, and mold. But some kitties have specific allergies. Cats can be allergic to a particular food or pollen or even something in their cat litter.

Keep in mind, however, that cats are far less likely to sneeze in reaction to allergens than humans. Cats suffering from allergies will typically spend time scratching and licking as well. Kitties with food allergies are notorious for removing large swaths of fur from their abdominal area and back while attempting to relieve the pruritus (itchy feeling) associated with a food allergy.


4. Nasal & Sinus Issues

Your cat can suffer from rhinitis and sinusitis, which are conditions in which the lining of the nasal passages and sinuses end up irritated and inflamed. These often occur as a result of an upper respiratory infection. Common signs include difficulty breathing, snoring, and ocular discharge. Treatment is usually straightforward and often involves basic supportive care, such as nasal washes, antibiotics (or antifungals, depending on what is determined to be the cause), and occasionally, decongestants.


5. Chronic Upper Respiratory Infections

a ginger cat sneezes
Photo Credit: Ihtar, Pixabay

If your cat has repeated sinus infections or upper respiratory illnesses, they can have chronic upper respiratory issues. The signs are often the same as what you see with viral and bacterial infections like rhinitis and sinusitis. Most veterinarians consider a cat’s upper respiratory illness chronic when it lasts for a few months or regularly comes back after treatment. Advanced diagnostics may be needed to isolate the specific pathogen and determine if a longer course or change in antimicrobial is needed to combat the illness, should signs last more than a few weeks.

Cats infected with viruses, such as feline herpes virus, often have relapses, particularly when stressed, so it is best practice to keep them as calm and comfortable as possible at home.


6. Foreign Bodies

Because cats understand the world largely through their sense of smell, they can sometimes get objects stuck in their noses after taking a sniff of a novel plant, person, or object. Blades of grass and other plant matter are usually the biggest culprits. Kitties are generally able to get rid of things like the occasional grass clipping or bits of pollen naturally.

If your cat doesn’t seem to get any relief and the foreign object seems stuck, contact your veterinarian for help. Home remedies can often do more harm than good in these situations. Treatment often requires light sedation to permit the irrigation of your pet’s nasal passages or the removal of the offending object with forceps (possibly with the aid of rhinoscopy). Your veterinarian may prescribe antibiotics to prevent infection and medication to soothe your cat’s irritated nasal passages.

divider cat faces 2 oct 2024

Final Thoughts

Cats can sneeze for a variety of reasons, including allergies and infection. Either way, it’s good to know that cat sneezes aren’t usually a cause for concern as long as your cat’s nose isn’t producing thick yellow or bloody mucus. It’s best to contact your companion’s veterinarian if your cat’s condition doesn’t improve in 1–3 days or if you suspect that your four-footed friend has a foreign object stuck in their nose. Remember that early intervention of a suspected upper respiratory infection is often the best way to prevent it from becoming a larger problem down the road.

Related Reads: 


Featured Image Credit By: Jupiter_79, Pixabay

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Why Chicken Bones Are More Dangerous for Cats Than Most Parents Realize

Chicken bones seem harmless enough, but for cats, they can cause serious damage quickly. Whether your cat swiped a piece off the counter...

Fantastic Pet Pantries and Where to Find Them

Let’s face it: times are really tough right now, and those of us in the 99% are struggling with the cost of just...

Ask Dr. Paola – Help! My Cat Refuses to Drink Water! (April 13, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Why Healthy Cats Still Vomit Sometimes (And How to Respond)

A cat that just vomited needs a specific kind of care, and the feeding decisions you make in the next few hours actually...

More related

Will My Cat Suffocate if They Sleep Under a Blanket? Vet-Approved Facts & FAQ

Once you bring a cat home, it won’t take long for them to find a blanket, a comforter, a scarf, or another type...

15 Savannah Cat Colors & Patterns (With Info & Pictures)

Savannah cats are incredibly striking in many ways. Besides resembling their wild African Serval cat ancestors in appearance and size, the coat colors...

Can Stress Give a Cat Diarrhea? Vet Approved Signs, Causes & Treatment

Stress can undoubtedly cause cats to have gastrointestinal problems, including diarrhea. Although diarrhea can be triggered by stress, the condition can also be...

What Smells Do Cats Like? 9 Vet-Verified Scents They Can’t Resist

Cats’ noses are powerful, and if they come across a smell they like, they can give themselves over to it wholeheartedly. They’ll rub...

Keep reading

5 Vet-Reviewed Tips on How to Use Cat Eye Drops (Without Getting Scratched)

Many cat owners are unsure how to handle the situation when their cat is diagnosed with an eye condition, and they’re prescribed eye drops. After all, it’s not like you can ask your feline pal to lean back their head...

treating-cats-eye

Are Plug-In Air Fresheners Bad for Cats? Vet Approved Facts & Advice

We all love our cats. What we don’t love is the odors they leave behind. Of course, most pet parents clean their homes, but we also want our houses to smell good, and that’s where air fresheners come in. However,...

Sad kitten

Is Echeveria Poisonous to Cats? Vet Approved Facts & Safety Tips

Echeveria comprises about 150 different species of succulent plants from the Crassulaceae family. These plants are native to Texas and Argentina, but some varieties can be found in places like Hawaii. Echeveria plants tend to be part of many households...

Catster_Is Echeveria Poisonous to Cats

Do All Cats Have a Primordial Pouch? Vet-Reviewed Facts & FAQ

Cats can be a real mystery for a lot of reasons. They’re unique and independent creatures that often leave us scratching our heads. One of the unusual things you may have noticed about cats is that it seems like they...

Fat Cat On Floor

Can Cats Eat Diatomaceous Earth? Vet-Verified Safety Tips & Warnings

Nowadays, we seem to be moving toward natural, organic, and integrative ways to combat disease—not only in humans but also in our kitties. If you have been looking for holistic ways to treat fleas and worms in your cat, you...

Can Cats Eat Diatomaceous Earth

My Cat Purses Their Lips When They Poop, What’s Going On? Vet-Verified Reasons (With Infographics)

Cats express how they’re feeling in subtle ways, which can be difficult for humans to pick up on. Sorting out signs of illness and discomfort in cats can be difficult, partly because they’re evolutionarily programmed to hide indications they’re not...

cat pooping in a yellow litter box

Are Polka Dot Plants Toxic to Cats? Vet-Reviewed Houseplants Examined

The polka dot plant (Hypoestes phyllostachya) is also known as the pink polka dot plant, the measles plant, baby’s tears, or freckle face. The green leaves have freckled markings of pink that look like polka dots. The more sunlight the...

Catster_Are Polka Dot Plants Toxic to Cats

Can Cats Eat Collard Greens? Vet-Approved Nutrition Advice

Plain collard greens are perfectly fine for cats to eat. They provide a good source of fiber, along with nutrients and minerals. Cats cannot digest these greens quite as well as humans or dogs can, though, so they mostly act...

Can Cats Eat Collard Greens

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.