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 Do Cats Gag? 10 Vet-Verified Reasons & When to Worry

cat gagging

Our cats are always nosing about, getting into all sorts of things. They see something peculiar, and what better thing to do than give it a good sniff? If your cat gags a lot, you might wonder what gives.

Some cats might be more sensitive to smells, textures, and stimuli than others. It just depends on the kitty and how they are. Here are 10 reasons your cat might be gagging.

divider 2 cats

Gagging in Cats: 10 Potential Reasons

We want to explain first that your cat might be sensitive to changes in their environment relating to air fresheners, cooking certain items, burning candles, using cleaners, and a variety of other stimuli.

Before you take your cat to the vet, determine if there are any changes you can think of that could have triggered the gagging. It might just be a process of elimination. But here are some alternative reasons.

1. Hairballs

If your cat is an avid groomer, chances are they will have hairball issues a time or two in their life. It is especially common among medium to long-haired cats. If your cat is gagging, it might absolutely be a hairball to blame.

In fact, it may be one of the most common and understandable reasons a cat is gagging. When cats groom themselves, the hairs get caught on papillae (small projections on the tongue) and can get stuck in and irritate the throat.

If the hair makes it to the stomach, it can aggregate into a hairball or trichobezoar. Cats might regurgitate the hairball or it could pass through the intestines, sometimes leading to constipation or blockages.

Hairballs are a normal part of a cat’s life, and they are usually unremarkable and highly expected. However, sometimes they can signal a problem. On average, your cat should cough up a hairball around once a month—maybe slightly more for long-haired cats.

If your cat has frequent problems with hairballs, it might mean they have slightly sluggish digestion. There are diets on the market specially formulated to combat hairballs and improve the overall function of the gastrointestinal tract.

Typically, an overproduction of hairballs can signal other issues like food allergies, environmental allergies, and inflammatory bowel disease.

Dry cat hairball
Image Credit: Joon Rungtipa, Shutterstock

2. Nausea

Your cat might be feeling a little sicky-icky. Nausea isn’t an underlying cause, but rather just a sign of another manifestation. Nausea can be as simple as motion sickness or as serious as an organ issue or cancer.

Because nausea is such a broad-spectrum issue, it can be hard to determine the underlying cause. You should absolutely get your cat to the vet if they seem nauseous over a long period of time.

Nausea has its remedies, sure. But the reality is, ongoing nausea is your cat’s body’s way of telling you something is wrong—so please, listen.

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

3. Food Intolerance

Food intolerances can be easily overlooked until signs become ultra-visible. Some cats show the signs very quickly, while others come on gradually or change over time.

When cats have food intolerances, there are usually other signs you might miss at first.

These can include:
  • Vomiting
  • Diarrhea
  • Flatulence
  • Frequent scratching
  • Hair loss
  • Poor growth
  • Coughing
  • Sneezing
  • Wheezing

If you suspect food allergies, you should promptly visit your vet. It might take some time to determine the trigger, but it will be necessary to keep them healthy and problem-free. To combat food intolerances, diet changes are an obvious need. Sensitivity or hypoallergenic diets are often used.

cat throwing up vomit outdoors
Image Credit: Nils Jacobi, Shutterstock

4. Foreign Object Ingestion

We all know our cats are curious creatures, and most aren’t shy about putting things in their mouth. For some of us, it would be no surprise if our cats ingested something they really shouldn’t have. While cats are typically less problematic than dogs in this category, they can still chew up and accidentally swallow lots of things.

Cats are known for linear foreign bodies like string or yarn that get caught under the tongue. Other objects can lodge in the esophagus or intestines creating an obstruction.

Signs of foreign object ingestion include:
  • Gagging
  • Vomiting
  • Regurgitation
  • Anorexia
  • Dehydration
  • Lethargy
  • Abdominal pain
  • Hiding
  • Constipation

5. Asthma

If your cat has asthma, they might gag. Severe coughing can stimulate the gag reflex and some cats will even bring up stomach contents after a coughing fit. You may also notice coughing, hacking, or open-mouthed breathing, which looks like gagging. Watch the video below of our vet explaining the difference between vomiting, coughing, and regurgitation in cats.

Asthma is a bit of an enigma to researchers, but most agree that it is an allergic reaction to an allergen in the atmosphere. Once it enters the cat’s lungs, the immune system responds accordingly. Your cat could have mild to severe asthma and treatment will be different depending on the individual feline.

Either way, feline asthma is a chronic and incurable respiratory disease, but good management is usually possible. If you believe your cat has asthma, it is imperative that you get treatment for your cat’s safety and comfort.

Signs usually include:
  • Difficulty breathing
  • Rapid breathing
  • Open-mouthed breathing
  • Labored breathing
  • Persistent coughing
  • Coughing up mucus

Typically, feline asthma responds to corticosteroids which can be delivered through injection, inhaler, or oral medication.

Yawning, choking, coughing Cat close up
Image Credit: Suzanne Tucker, Shutterstock

6. Respiratory Infections

Other respiratory issues could cause your cat to gag. Luckily, some respiratory issues are preventable by vaccines. Some of these include feline herpesvirus type-1, feline calicivirus, and Bordetella.

If you haven’t vaccinated your cat against certain diseases and they are gagging a lot, it might be a good idea to take them to a vet and explain the situation. The vet might run tests to see if any of these diseases are active in your cat’s system.

Some signs of respiratory distress in cats include:
  • Nasal and eye discharge
  • Sneezing
  • Runny nose
  • Coughing
  • Fever
  • Lethargy
  • Decreased appetite
  • Drooling
  • Labored breathing

If your cat gets a clean bill of health, your vet might administer the vaccines to get them up-to-date, preventing any issues from developing in the future.


7. Tumors

In rare cases, gagging might signal there is a tumor somewhere in the body—specifically in the throat and neck. Here are a few different kinds of tumors that can cause gagging:

Squamous Cell Carcinoma

Squamous cell carcinoma (CCC) is the most common type of oral tumor in cats. Especially if a tumor arises from the base of the tongue, back of the throat, or tonsils, it can stimulate the gag reflex quite frequently.

Lymphoma

Lymphoma is another type of oral tumor in cats. Aside from gagging, you may notice your cat drooling, struggling to swallow, losing weight, and having bad breath if they have an oral tumor like lymphoma.

Melanoma

Melanoma is another type of reasonably common oral tumor in cats. If your cat has an oral tumor they will need surgery to remove or biopsy the mass. Unfortunately, many tumors are not noted until they are too large to surgically remove.

Thyroid Carcinoma

The thyroid is a gland that sits in the neck. Like oral tumors, tumors that arise here can cause gagging as they put pressure on the throat and esophagus. It can also interfere with breathing. Cats with thyroid carcinoma will also have signs related to excessive thyroid hormone production or hyperthyroidism.

squamous cell carcinoma in cat
Image Credit: Berto Ordieres, Shutterstock

8. Liver Disease

The liver is responsible for collecting and expelling toxins in the body and aiding in digestion. It alone makes the bile that we use to break down our food. When your cat’s liver is in trouble, it can cause nausea, vomiting, and gagging.

Liver disease can stem from several sources. Here are a few common scenarios.

Hepatic Lipidosis

This is also known as fatty liver syndrome and occurs when triglyceride builds up in liver cells. Usually, cats lose their appetite and reject food. This issue can be fatal if untreated and generally affects overweight cats.

Infections

Bacterial infections can hurt the liver.

Toxins

Ingesting a toxin usually directly impacts the liver because it is your cat’s (and your) filtration system.

Metabolic Disorders

If your cat suffers from a metabolic disorder, it can directly impact their liver. Some examples include diabetes and thyroid conditions. If you’re concerned that your cat might have an issue with their liver, you must get them to the vet immediately.


9. Kidney Disease

The kidneys are crucial for survival. They provide a built-in filtration system for the body to remove waste products, filter blood, maintain electrolyte balance, and regulate blood pressure. If your cat develops kidney disease, it can cause a myriad of signs, including gagging.

Signs of kidney disease in cats include:
  • Weight loss
  • Vomiting
  • Increased thirst
  • Poor quality coat
  • Bad breath
  • Mouth ulcers
  • Lethargy

Kidneys are a non-negotiable part of your cat’s body. They absolutely need their kidneys, so it is imperative that you treat any issues that arise quickly. Your vet will come up with a treatment plan if your cat is diagnosed with kidney disease.

tired or sick cat
Image Credit: Kginger, Shutterstock

10. Heart Disease

Heart disease can be scary and is a common issue in aging felines. Heart disease can cause fluid in the lungs. If this is the case your cat can cough up watery or pink-tinged fluid. This process may look a lot like gagging.

Heart disease can occur at any age and be congenital (present at birth) or develop over time. It depends on the underlying reason and genetic factors. Certain breeds carry genes that cause heart disease.

Hypertrophic cardiomyopathy is one of the most common causes of heart disease in cats.

Signs can include:
  • Exercise intolerance
  • Lethargy
  • Collapse
  • Hind-leg paralysis
  • Coughing
  • Respiratory distress

If your cat has severe signs of heart disease, it is intensely important to get them medical care immediately. It can be the difference between life and death.

When to Take Your Cat to the Vet

If you notice any changes in your cat, it is best to take them to the vet. While some issues might not be too concerning, others will require further testing and treatment.

smiling female veterinarian petting a cat
Image Credit: Prostock studio, Shutterstock

divider 2 cats

Conclusion

If your cat is gagging, it is important to get to the bottom of it. Has it been going on for a while? Is it impacting your cat’s daily life? Are they showing additional signs that might raise concern?

If so, it is time to get them to your vet. It might be something as simple as allergies, or as complicated as cancer. That is why it is so vital to address it and not procrastinate vet care. Best of luck to you and your gaggy gal or guy.


Featured Image Credit: JackieLou DL, 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

2 Responses

  1. My cat has suddenly decided not to come into house. She use to sleep on my bed, sit on seatee at the side of me – not now, she stays outside. comes in just to eat and drink and runs out again. help please. just been to vet they gave her a good feeling all over etc etc he said nothing wrong with her. Unfortunately the Vet did not speak very clear English So I hope I did not miss anything. he just gave me flea tablets

    1. Hi Sandra,

      Thank you for reaching out and sharing your concerns about your cat's recent behavior. It must be distressing to see such a sudden change, especially after she was so comfortable indoors.

      It’s good to hear that you’ve already taken her to the vet and that her health appears to be fine. However, since the vet mentioned that everything seemed normal, it’s possible that there may be something environmental or emotional that’s affecting her. Cats can sometimes act differently due to stress, changes in their environment, or even if they’ve had a negative experience.

      If you’re still worried, it might be helpful to consult with another veterinarian or schedule an appointment with one of our vets at Pangovet.com where we can provide further insights and help you understand what might be going on with your cat.

      In the meantime, try to observe if there’s anything outside that might be attracting or scaring her, and continue to offer a calm, welcoming space indoors. We’re here to support you and your cat through this.

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

Oreo, Once a Stray, Gets His Own Book to Help Other Cats

Originally published on Nov 10, 2014 and republished in remembrance of Oreo the cat. The Oreo Cat may have had a rough start...

Could My Cat’s Swollen Face Be Cancer? Tumors, Cysts, & Lumps Explained (Vet Answer)

It can be pretty scary if your cat develops facial swelling, regardless of whether it is sudden. The first thing that comes to...

Will My Cat Eat My Guinea Pig? Risks, Safety Tips & FAQ (Vet-Verified)

If you’re a cat person who is interested in becoming a guinea pig person or vice versa, you may be wondering if it’s...

Is a Cat’s Sense of Smell Stronger Than a Dog’s?

Cats vs. dogs have been a subject of debate for as long as the two have been human companions. But there are some...

More related

11 Places Where Indoor Cats Can Get Stuck: Vet Reviewed Facts & Tips

Cats can be sneaky. Without realizing it, your cat can slip away and find a place to hide. Under normal circumstances, it isn’t...

7 Tips for Helping Your Kids Start a Pet-Sitting Business

When the kids grow eager to earn a little extra cash, it’s time for parents to foster their entrepreneurial spirit. Any parent can...

How to Take Amazing Photos of Your Cat: 7 Helpful Tips

Photos can capture precious memories of your cat, but it can be challenging to take clear photos of them. Most cats don’t have...

Pet Poison Prevention Awareness Month: When & What Is It?

Pet Poison Prevention Month takes place in March each year. It’s a time dedicated to raising awareness about the items in and around...

Keep reading

How to Trim the Nails of an Angry or Aggressive Cat (Vet-Approved Guide)

If you ask Mojo, the cat, about his favorite pastimes, nail trims would definitely NOT be on the list. Sleeping and eating are favorite pastimes, but nail trims are not. Mojo is a tough-looking former stray who now holds court...

Can Cats Eat Mushrooms? Vet-Verified Facts, Risks & FAQ

If you’re cooking a delicious mushroom risotto, you might be surprised to find your cat brushing up against your legs and showing interest in your vegetarian dinner. You might even be tempted to give your cat a piece of mushroom,...

Can Cats Eat Mushrooms

Temptations Cat Treats Review of 2026: Recalls, Pros & Cons

Temptations Cat Treats: Review Summary A popular American cat treat, Temptations is manufactured by MARS, the same company that produces Whiskas, Greenies, Sheba, and Eukanuba. Temptations treats are genuinely loved by many cats and their owners. They’re an affordable treat,...

Temptations Cat Treats Review

Why Do Cats Like Their Butt Scratched? (7 Interesting Reasons)

It’s happened to just about every cat person. You come in for some cuddles, but your cat only turns around and presents their butt. Often, cats like their butt scratched. However, cats are often confusing, complicated creatures. They may appear...

cat butt stuck in the hole of a scratching post

Why Does My Cat Bite Me When I Pet Him? 3 Vet-Approved Reasons & Solutions

Cats are not always the most predictable creatures. Sometimes, they adore your petting and practically beg for your attention. Other times, they get irritated and bite you during the petting process. Why is that? More importantly, what can you do...

cat bites the woman's hand

Can Cats Eat Sweet Potato? Vet-Verified Facts & Feline Nutrition Tips

Sweet potatoes seem to be gaining traction in the pet food world. You may have seen dog foods advertised with sweet potato as a main ingredient. That’s great for dogs, but it may make you wonder, can cats eat sweet...

Can Cats Eat Sweet Potato

Are Cats Omnivores? Our Vet Answers & Explains

Cats are described as being obligate carnivores, which means that they must eat animal meat as a major constituent of their diet to meet their nutritional needs. What’s more, cats can only get certain nutrients like vitamin A, taurine, and...

cat in front of a bowl with meat and vegetables

How Do Cats Clean Themselves? Normal Behavior & Advice (Vet-Reviewed)

Cats are known for their impressive ability to self-groom. However, there is a line between healthy grooming and compulsive grooming. Likewise, some cats under-groom. Both compulsive grooming and under-grooming occur due to other underlying health problems. Understanding what’s normal for...

white himalayan cat grooming hepper pod bed

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.