Do Cats Snore? Wheezing & Asthma Signs Explained

Do cats snore, and is it normal?

The short answer is yes, cats snore, and for a great many of them it is a normal, harmless part of how they sleep, so the real question is when a snore is just a snore and when it is something more.

Snoring is simply a sound made when air passes through a partly relaxed and slightly narrowed airway during sleep, and cats, like people, can do it. A cat that has always snored softly, sleeps in a scrunched-up or head-tucked position, and is bright, active, and breathing quietly when awake, is very likely just a natural snorer, and there is nothing to fix. Some cats snore only in certain positions and go quiet when they shift, so a snore that comes and goes with how the cat is lying is a reassuring sign that position, rather than illness, is behind it. What turns snoring from a charming quirk into something worth a closer look is change and company: snoring that is new in a cat that never used to do it, snoring that grows louder or harsher over time, or snoring that arrives alongside other signs such as coughing, wheezing, nasal discharge, or any difference in how the cat breathes while awake. So the useful frame, much as with sneezing or drooling, is to judge the snore by whether it is long-standing and isolated, in which case it is almost always fine, or new and accompanied by other signs, in which case it deserves attention. The sections below explain the harmless reasons cats snore and the less harmless ones.

It also helps to know that snoring and the more concerning sounds are not always easy to tell apart by ear alone, especially in the middle of the night when a worried owner first notices it. A useful habit is to record a short video on your phone the next time your cat makes the sound, capturing both how the cat looks and how it breathes. That clip is worth far more to a vet than a description from memory, because it shows whether the noise happens on the in-breath, the out-breath, or both, whether the cat is asleep or awake, and whether there is any visible effort, all of which help separate a harmless snore from a wheeze or a cough.

Why cats snore

Understanding the ordinary reasons behind a cat’s snore takes most of the worry out of it, because the majority come down to anatomy, weight, and sleeping position rather than illness.

The single biggest factor is face shape. Flat-faced, or brachycephalic, breeds such as Persians, Himalayans, and Exotic Shorthairs have shortened nasal passages and a compressed airway, which makes them far more likely to snore, snuffle, and breathe noisily, and for these cats a certain amount of snoring is simply built in. Weight is the next big factor: an overweight cat carries extra tissue around the neck and throat that narrows the airway during sleep, so weight gain is a common reason a cat that never used to snore starts doing so, and weight loss often quietens it again. Sleeping position matters too, since a cat curled up tightly or with its head at an odd angle can partially kink its airway and snore in that pose, then fall silent when it stretches out. Ordinary factors like a slightly dry or dusty environment can also play a part, drying or irritating the airway just enough to add a little noise to a cat’s sleep. When snoring can be explained by one of these, a flat-faced breed, a few extra pounds, a favourite scrunched sleeping spot, and the cat is otherwise well, it is almost always the harmless kind. The value of knowing these causes is that one of them, weight, is very much worth addressing for the cat’s overall health, snoring aside.

Weight is worth dwelling on because it is the one common snoring cause that owners can actually change, and doing so pays off well beyond a quieter night. A cat carrying extra weight is at higher risk of diabetes, joint problems, and a shorter life, so a snore that appeared as the cat gained weight is really a gentle early nudge toward getting that weight back down. If your cat has started snoring and has also been creeping up the scales, a conversation with your vet about a sensible feeding plan tackles both the snore and the bigger health picture at once, which makes it one of the more rewarding causes to have.

When snoring is worth a vet visit

While most snoring is benign, there are specific patterns that suggest the noise is coming from a problem rather than a quirk, and these are the ones to act on.

Book a vet visit if the snoring is genuinely new in a cat that never used to snore, particularly an adult or older cat, since a sudden change can reflect something developing in the nose or airway rather than a lifelong habit. The same goes for snoring that steadily gets louder, harsher, or more rattly over time, or that is paired with other signs: nasal discharge, sneezing, coughing, wheezing, a change in the voice or meow, reduced appetite or energy, or any difference in breathing while the cat is awake. Snoring that comes with laboured or fast breathing, or with open-mouth breathing, is not really snoring at all but a breathing problem, and that is urgent. Causes of new or worsening snoring can include respiratory infections, nasal polyps or other growths, foreign material in the nose, dental disease affecting the nasal area, and, importantly, weight gain. In older cats especially, a persistent one-sided noise or discharge alongside the snoring is worth prompt attention, since that pattern can point to something in the nose that needs looking into. Because several of these are treatable and a few are serious, a cat whose snoring has changed noticeably is worth having examined, whereas the long-time gentle snorer who is otherwise thriving generally is not. As always, it is the change and the company the snoring keeps that decide it.

Coughing: different from snoring

It is important to separate coughing from snoring clearly, because while snoring is usually harmless, a genuine cough in a cat is more often a sign of something that needs looking into.

Snoring is a sleep sound, but coughing is an active, awake event: the cat makes a forceful, often repeated effort to clear its airway, and in cats this frequently looks like a crouched posture with the neck stretched out and the head lowered, followed by a dry, hacking sound. Unlike dogs, cats do not cough all that often, so when a cat does cough repeatedly it is worth taking seriously rather than dismissing as a minor, passing thing. A single, isolated cough now and then, in a cat that is otherwise completely well, may be minor, perhaps a tickle or a bit of inhaled dust, in the same way a person might cough once after breathing in something dry. But a cat that coughs repeatedly, has coughing fits, coughs regularly over days or weeks, or coughs alongside any breathing difficulty, wheezing, or general signs of being unwell, needs a vet to find the cause. The most common reason for a recurring feline cough is asthma, covered below, but infections, parasites, inhaled irritants, and occasionally heart or other chest disease can all be behind it, which is exactly why a lasting cough needs a proper diagnosis rather than a guess. The key message is simply that coughing, unlike snoring, is not something to assume is harmless, and a persistent cough is a clear reason to book an appointment.

Coughing vs. bringing up a hairball

One very common source of confusion deserves its own section, because owners frequently mistake a cough for a cat trying to bring up a hairball, and telling them apart genuinely helps.

A cat retching to bring up a hairball and a cat coughing can look similar at a glance, since both involve a crouched cat making repeated effortful sounds, but they are different events with different meanings. Bringing up a hairball is really a form of retching or gagging: the cat heaves, and the sequence ends with a wad of fur or some fluid being produced. A cough is a respiratory effort that comes from the airways and typically produces nothing, just the dry, hacking sound, repeated. The distinction matters because a cat that appears to be “trying to cough up a hairball” repeatedly but never actually produces one may not be dealing with fur at all, but coughing, and the classic mistaken hairball is in fact one of the most common ways feline asthma first shows up. So if your cat regularly makes hairball-like efforts without ever producing a hairball, do not simply keep reaching for hairball remedies; that pattern is worth mentioning to your vet, because it may be a cough that needs a different approach. Watching closely for whether a hairball actually appears at the end is one of the more useful things you can observe and report.

A rough tally over a week or two helps here as well. A genuinely hairball-prone cat produces the occasional actual hairball, perhaps once or twice a month, and is otherwise fine. A cat that makes the hairball posture and sound several times a week but almost never produces fur is showing a pattern that leans much more toward a cough, and writing down how often it happens and whether anything comes up turns a vague worry into something concrete for the vet. This one distinction, effort that produces fur versus effort that produces nothing, is among the most clinically useful things an owner can notice.

Feline asthma explained

Because asthma is the leading cause of a chronic cough in cats and is so often missed, it is worth understanding properly, since it is both common and very manageable once diagnosed.

Feline asthma is a condition in which the small airways in the lungs become inflamed and narrowed, much like asthma in people. The inflammation makes the airways oversensitive, so they react to triggers by tightening and producing mucus, which leads to coughing, wheezing, and sometimes real difficulty breathing, often in recurring episodes with more normal spells in between. Common triggers and aggravators include cigarette smoke, dust and dusty or scented cat litter, aerosol sprays, air fresheners, perfumes, pollen, and mould, essentially airborne irritants that inflamed airways object to. Because so many triggers are things owners can control, reducing them at home is a genuine part of treatment rather than an afterthought. Asthma can affect cats of any age but is often diagnosed in young and middle-aged cats, and some breeds, Siamese among them, appear more prone. The reassuring part is that although asthma is a lifelong condition that cannot be cured, it is usually well controlled with veterinary treatment, typically anti-inflammatory medication to calm the airways and, in many cats, inhalers designed for feline use, alongside reducing triggers in the home. Left untreated, asthma can worsen and a severe attack can be dangerous, which is why a cat with a chronic cough and wheeze should be assessed rather than left, but treated, most asthmatic cats live full, comfortable lives. The condition is manageable precisely because catching and controlling the airway inflammation early prevents the permanent lung changes that untreated asthma can cause over years.

What an asthma attack looks like

Recognising an asthma attack matters because a bad one is an emergency, and the signs are distinctive enough that knowing them can save a cat’s life.

In a typical asthma episode, the cat adopts that characteristic low crouch with the neck stretched forward and the head close to the ground, and makes a hacking, coughing effort, exactly the posture and sound so often mistaken for a cat trying to expel a hairball. There may be audible wheezing and visibly faster or more laboured breathing. Between episodes many cats look and act completely normal, which is part of why asthma is under-recognised and why owners sometimes delay seeking help, assuming that a cat that seems fine most of the time cannot have a real lung condition. The line between a manageable episode and an emergency is the breathing: a cat that is coughing and wheezing but breathing reasonably comfortably still needs a vet, but not necessarily this minute, whereas a cat that is struggling to breathe, breathing with an open mouth, gasping, or showing blue-tinged gums is in a genuine crisis and needs emergency care without delay. If your cat has diagnosed asthma, your vet will usually give you a plan for attacks, which may include a fast-acting inhaler, and knowing the emergency signs in advance means you can act fast when it counts.

It helps to rehearse, in your own mind, what you would do before an attack ever happens: where the inhaler or medication is kept, which emergency clinic you would call out of hours, and how you would move a distressed cat calmly into a carrier. Panic wastes time, and a cat struggling to breathe is frightened enough without an agitated owner adding to it. Keeping the cat as calm and cool as possible on the way to help, and avoiding any handling that adds stress, genuinely matters, because stress and heat both make breathing harder. Having a plan turns a terrifying moment into a set of steps you can actually carry out.

Wheezing and noisy breathing

Wheezing is another sound owners ask about, and it is worth distinguishing from snoring, because a wheeze points more clearly toward a narrowed airway than the harmless rumble of a sleeping cat.

A wheeze is a higher-pitched, whistling or squeaky sound made as air is forced through airways that have become narrowed, and unlike snoring it can happen while the cat is awake and is often accompanied by coughing or visible effort to breathe. Where a snore is a soft, low sound tied to sleep that stops when the cat wakes and moves, a wheeze suggests the airways themselves are constricted, which is why wheezing is strongly associated with asthma and other lower-airway problems rather than the harmless upper-airway relaxation behind a snore. Noisy breathing more generally, whether whistling, rattling, or raspy, when it happens while the cat is awake and active, is a reason to pay attention, especially if it is new or has changed in character. Flat-faced breeds do make more upper-airway noise as a baseline, so context matters, but a cat that has started wheezing, or whose breathing has become audibly noisy while awake, or that seems to be putting effort into breathing, should be seen by a vet without much delay. The simple rule of thumb is that noise only during sleep is usually snoring and usually benign, while noise while awake, or any sense that the cat is working to breathe, is wheezing territory and worth investigating.

One practical caution is not to over-worry a flat-faced cat that has always been a bit snuffly and snorty while awake, since for those breeds a degree of upper-airway noise is part of their normal. The change to watch for even in them is a worsening, a new cough, or any effort to breathe. For all other cats, awake wheezing that was not there before is the clearer signal, and pairing what you hear with a short video and a note of when it happens gives the vet the best possible starting point.

Infections, parasites, and other causes

Beyond asthma, a handful of other conditions can cause coughing or noisy breathing, and while asthma is the most common chronic cause, these are worth knowing so nothing is assumed too quickly.

Respiratory infections, the same upper-airway infections behind cat flu, can cause coughing along with sneezing, discharge, and a generally under-the-weather cat, and some infections reach lower into the airways. Parasites are a less obvious cause: lungworm and, in some regions, heartworm can affect a cat’s airways and lungs and produce coughing, which is one reason routine parasite prevention matters and why a vet may consider parasites in a coughing cat, particularly one with outdoor access or one that hunts. Inhaled irritants, cigarette smoke above all, but also dust, aerosols, and strong scents, can irritate the airways and provoke coughing even without full-blown asthma, and they make asthma worse where it exists. Less commonly, heart disease and other chest conditions can show up with coughing or changed breathing, though in cats heart disease more often causes breathing difficulty than a classic cough. Growths, inhaled foreign material, and other problems round out the list, each uncommon but real, and each a reason not to assume every cough is simply a hairball or a passing tickle. The reason to run through these is not to alarm but to underline why a persistent cough deserves a proper veterinary assessment rather than guesswork: the treatment for asthma, an infection, a parasite, and a heart problem are entirely different, and only an examination, and often tests like imaging, can tell them apart.

Breathing emergencies: never wait

Whatever the underlying cause, some breathing signs are always emergencies, and this is the most important section to remember, because with breathing trouble, minutes matter.

Cats are obligate nose-breathers who normally breathe quietly and with barely visible effort, so any of the following means emergency veterinary care right now, not a wait-and-see: breathing through an open mouth or panting when the cat is not hot or stressed; fast or laboured breathing while resting; gasping or gulping for air; a belly that heaves noticeably with each breath; gums or tongue that look blue, grey, or pale; or a cat that is hunched, still, and visibly distressed by the effort of breathing. Any of these signals that the cat is struggling to get enough oxygen, which can become fatal quickly. If you see them, keep the cat as calm and cool as possible, avoid stressing it further, and get it to an emergency vet without delay, calling ahead if you can so the clinic is ready when you arrive. It also helps to know your cat’s normal resting breathing rate, the number of breaths per minute while it sleeps or rests quietly, because a rate that is clearly elevated at rest is an early warning even before obvious distress. Checking it now and then when your cat is well gives you a baseline, so you can recognise a meaningful rise if the cat ever seems off. This is a genuinely useful thing to be able to check, and a companion guide covers how to count and interpret it. As a rough guide, a resting or sleeping cat usually takes fewer than about thirty breaths a minute, and a rate that sits well above that when the cat is calm and cool is worth taking seriously even if the cat seems otherwise settled. When in doubt about breathing, always treat it as urgent, since it is the one category where waiting carries the greatest risk.

Helping a snoring or coughing cat

Finally, some practical steps, which differ depending on whether you are dealing with a harmless snorer or a cat that is coughing or wheezing.

For a cat that simply snores and is otherwise healthy, there is usually nothing to treat, but two things genuinely help: keeping the cat at a healthy weight, since weight loss often reduces snoring and benefits the whole cat, and keeping the sleeping area free of dust and strong scents. If your cat is a flat-faced breed, some baseline snuffle and snore is normal, though these breeds do benefit from not being overweight and from a vet keeping an eye on their airways, since their anatomy leaves less margin if any additional problem develops. For a cat that is coughing, wheezing, or suspected of asthma, the most important step is a veterinary diagnosis, because the right treatment depends entirely on the cause, and you should not give human cough or asthma medicines, which can be dangerous for cats. Alongside veterinary treatment, reducing airborne triggers at home makes a real difference for asthmatic and cough-prone cats: switch to a low-dust, unscented litter, stop smoking indoors, avoid aerosol sprays, air fresheners, and strong perfumes around the cat, keep dust down, and consider an air purifier in the rooms the cat uses most. If your cat has diagnosed asthma, follow your vet’s plan closely, including any daily medication and a rescue inhaler for attacks, and learn the emergency signs. In every case, the guiding principle is that a happy, healthy snorer needs little more than weight control and clean air, while any cough, wheeze, or change in breathing is a reason to let a vet take a proper look.

It is also worth setting expectations for a cat that turns out to have asthma, since a diagnosis can feel daunting at first. Most asthmatic cats, once on the right treatment, go back to living ordinary, comfortable lives, with attacks becoming rarer and milder as the airway inflammation is brought under control. The work is mostly in the routine, giving daily medication or using an inhaler consistently, and staying on top of triggers at home, and in learning to spot an attack early. Owners often find that after the initial adjustment, managing feline asthma becomes a quiet background habit rather than a constant worry, and the cat is far better for it.

Frequently asked questions