Why Is My Cat Coughing? Causes, Sounds & When to Worry

A cat coughs when the airways are irritated, inflamed, narrowed, or affected by an underlying disease. Common causes include feline asthma, bronchitis, respiratory infections, parasites such as heartworm or lungworm, inhaled irritants, and occasionally foreign material or tumors. Cats do not usually cough as frequently as people do, so repeated coughing deserves attention.

One of the hardest parts for owners is recognizing a true cough. Cats that cough often crouch low, extend the head and neck, and make a dry hacking or wheezing sound. This can look similar to trying to bring up a hairball, but coughing comes from the respiratory tract rather than the stomach.

If your cat is open-mouth breathing, struggling for air, has blue or gray gums, collapses, or seems severely distressed, seek emergency veterinary care.

Key Takeaways

• Cats can cough, although coughing is less common in cats than in people or dogs.
• A true cat cough often looks like a crouched posture with the neck extended and sounds dry, hacking, harsh, or wheezy.
• Asthma and inflammatory airway disease are important causes of recurrent coughing in cats.
• Respiratory infections, parasites, inhaled irritants, foreign material, and less commonly tumors can also cause coughing.
• A cough is often mistaken for gagging, retching, vomiting, or trying to pass a hairball.
• Persistent, frequent, worsening, or unexplained coughing should be evaluated by a veterinarian.
• Open-mouth breathing, blue or gray gums, severe breathing effort, collapse, or coughing blood are urgent warning signs.
• Do not give human cough medicine or use leftover pet medication unless your veterinarian specifically instructs you to do so.

What does a cat cough sound like?

A cat cough may sound:

• dry and hacking
• harsh or repetitive
• wheezy
• like something is stuck in the throat
• like a short burst of forced air
• like gagging at the end of the episode

The VCA Animal Hospitals description is useful because it explains that cats commonly crouch down and stretch the neck forward while coughing. A severe coughing bout can end with a retch, which is one reason people confuse coughing with vomiting.

The sound alone cannot diagnose the cause. A dry cough can occur with asthma, bronchitis, irritants, parasites, or other airway disease. A wheezy cough may suggest narrowed airways but still requires veterinary assessment.

If possible, take a short video of the episode for your veterinarian. Cats often stop coughing by the time they arrive at the clinic, and a video can help distinguish a cough from retching, gagging, sneezing, or another unusual sound.

Cat coughing vs hairball: how can you tell the difference?

This is one of the most common points of confusion.

A cat trying to produce a hairball is usually experiencing a gastrointestinal event. The cat retches or vomits and may eventually bring up a cylindrical wad of hair, stomach fluid, food, or foam.

A coughing cat is forcefully expelling air from the respiratory tract. The body may be low to the ground, with the neck stretched forward. Nothing may come out.

Feature	Coughing	Hairball/retching
Main system involved	Airways/lungs	Digestive tract
Typical posture	Crouched, neck extended	Abdominal contractions/retching
Sound	Hacking, dry, harsh, wheezy	Gagging/retching/vomiting sounds
Material produced	Usually none	Hair, fluid, food, foam may appear
Repeated episodes	Can indicate airway disease	Can indicate hairball or GI issue

Cornell’s Feline Health Center notes that repeated hacking without producing a hairball may actually be a sign of respiratory disease such as asthma rather than a hairball problem. That is why frequent “hairball attempts” with nothing produced should not automatically be dismissed.

Why is my cat coughing? Common causes

Several conditions can trigger coughing. The pattern, frequency, breathing effort, age, environment, and other symptoms help veterinarians narrow the possibilities.

1. Feline asthma

Asthma is one of the most important causes of recurrent coughing in cats.

The Cornell Feline Health Center explains that feline asthma involves inflammation and narrowing of the lower airways, often in response to inhaled allergens. Clinical signs can include coughing, wheezing, rapid breathing, breathing difficulty, and open-mouth breathing.

A cat with asthma may crouch close to the floor with the neck extended during an episode. Some owners initially believe the cat is trying to vomit a hairball.

Asthma can range from mild intermittent coughing to a life-threatening respiratory crisis. There is no safe way to judge the severity of every episode from appearance alone.

2. Chronic bronchitis or inflammatory airway disease

Bronchitis causes inflammation in the lower airways and can produce a persistent dry or harsh cough.

VCA describes feline asthma and bronchitis as closely related lower-airway conditions. Irritants can trigger airway inflammation, increased mucus production, and narrowing that makes breathing more difficult.

Chronic bronchitis often develops gradually. A cat may cough for weeks or months before owners realize the episodes are not hairballs.

3. Respiratory infection

Viral, bacterial, fungal, or other infections can affect the respiratory tract.

Cats with infection may have additional symptoms such as:

• sneezing
• nasal discharge
• eye discharge
• fever
• reduced appetite
• lethargy
• noisy breathing

Some upper-respiratory infections mainly cause sneezing and nasal signs, while lower-airway or lung involvement is more likely to cause coughing.

Pneumonia is more serious and may cause increased breathing rate, weakness, fever, poor appetite, and respiratory distress.

4. Heartworm disease and other parasites

Heartworm affects cats differently from dogs. Cats often have only a small number of worms, but the inflammatory response in the lungs can still cause significant respiratory disease.

Other parasites, including lungworms in some regions and lifestyles, may also cause coughing.

Your veterinarian may consider parasite risk based on geography, travel, hunting, outdoor access, preventive medication, and test results.

5. Environmental irritants

Smoke, aerosol sprays, fragrances, dust, fumes, and certain household products can irritate sensitive airways.

The Merck Veterinary Manual specifically notes environmental aeroallergens and irritants such as cigarette smoke, perfumes, pollen, molds, and dust as important considerations in feline asthma management.

Potential irritants include:

• cigarette or vaping smoke
• dusty cat litter
• perfume
• air fresheners
• aerosol cleaners
• hairspray
• incense
• essential-oil diffusers
• heavy household dust

Reducing obvious airborne irritants is sensible, but it should not replace diagnosis when coughing continues.

6. Foreign material in the airway

A cat may inhale a small piece of plant material or another object that irritates the airway and triggers coughing.

This is less common than inflammatory airway disease, but sudden coughing after outdoor activity or chewing grass can raise suspicion. Foreign material may require imaging, bronchoscopy, or another veterinary procedure to identify and remove it.

Do not attempt to blindly reach into a cat’s throat if you cannot clearly see and safely grasp an object without pushing it deeper.

7. Tumors or other chest disease

Tumors affecting the lungs or airways can cause coughing, although they are less common than asthma or bronchitis.

Fluid around the lungs, chest trauma, and other serious conditions can also alter breathing. Interestingly, coughing is less strongly associated with heart disease in cats than it is in dogs; cats with heart disease may instead show rapid breathing or respiratory distress.

Because many conditions overlap, a persistent cough should be diagnosed rather than guessed at home.

Why does my cat cough sometimes but act normal?

An occasional isolated cough can occur after a minor airway irritation, and some cats appear completely normal between episodes.

That does not automatically mean nothing is wrong.

Mild asthma, early bronchitis, intermittent exposure to an irritant, or other airway disease can produce episodes separated by hours, days, or weeks. Cats are also good at hiding illness, especially early in a disease process.

If coughing happens repeatedly, keep a record of:

• date and time
• number of coughs or length of episode
• whether wheezing occurred
• activity immediately beforehand
• exposure to litter dust, smoke, spray, or fragrance
• appetite and energy
• resting breathing rate
• whether anything was vomited

A pattern can make the veterinary history much more useful.

Why does my cat have a dry cough?

A dry hacking cough is commonly associated with lower-airway inflammation, including asthma and bronchitis, but it is not specific enough to diagnose either condition.

The Merck Veterinary Manual describes coughing as a prominent sign of tracheobronchitis and notes that asthma can cause coughing, wheezing, and shortness of breath.

A dry cough can also occur with parasites, irritants, inhaled material, or other lung disease.

The duration matters. A single cough after sniffing dust is different from daily dry hacking for several weeks.

Why is my cat coughing and wheezing?

Coughing plus wheezing is particularly suggestive of narrowed or inflamed airways.

Asthma is one important possibility. During an asthma flare, airway muscles constrict and the inflamed airway becomes harder to breathe through. Wheezing may be audible, especially during exhalation.

However, respiratory infections, parasites, airway obstruction, and other problems can also cause abnormal breathing sounds.

If the cat is wheezing but breathing comfortably with the mouth closed, arrange veterinary assessment. If wheezing is accompanied by open-mouth breathing, obvious abdominal effort, blue or gray gums, collapse, or panic, treat it as an emergency.

When is cat coughing an emergency?

Seek urgent veterinary care when coughing occurs with signs of respiratory compromise or severe illness.

Emergency warning signs include:

• open-mouth breathing
• blue, gray, or very pale gums or tongue
• severe abdominal effort while breathing
• inability to settle because of breathing difficulty
• collapse or profound weakness
• coughing up blood or blood-tinged material
• sudden severe respiratory distress

Cornell’s guidance on feline dyspnea emphasizes that breathing difficulty can worsen rapidly and may arise from asthma, heart failure, fluid around the lungs, or other serious conditions.

Do not stress a cat that is struggling to breathe. Keep handling minimal and transport the cat for emergency care.

When should a coughing cat see a regular veterinarian?

Schedule a veterinary appointment if:

• the cough keeps returning
• episodes are becoming more frequent
• your cat coughs daily or repeatedly
• the cough lasts for days
• your cat also has sneezing, discharge, appetite loss, or lethargy
• you hear wheezing
• the cat seems less active than usual
• you repeatedly think your cat has a hairball but no hairball appears

PetMD’s current guidance recommends veterinary evaluation for persistent coughing because treatment depends on the underlying cause.

How do veterinarians diagnose cat coughing?

Diagnosis usually starts with history and physical examination.

Your veterinarian may ask:

• How often does the cat cough?
• Is the cough dry or productive?
• Is there wheezing?
• Is the cat indoor-only or outdoors?
• Is heartworm prevention used?
• Is there smoke, dusty litter, fragrance, or aerosol exposure?
• Does the cat vomit or produce hair afterward?
• Has appetite or weight changed?

Depending on the case, tests may include:

• chest radiographs
• bloodwork
• parasite testing
• heartworm testing
• fecal testing
• chest ultrasound
• bronchoscopy
• airway wash or sampling
• cardiac evaluation when indicated

There is no single test that proves every case of feline asthma. Veterinarians often diagnose it by combining history, imaging, laboratory results, and exclusion of other causes.

How is a cat cough treated?

Treatment depends entirely on the cause.

Examples include:

• anti-inflammatory medication for asthma or inflammatory airway disease
• bronchodilators in selected cats with narrowed airways
• antibiotics when bacterial infection is diagnosed or strongly suspected
• anti-parasitic treatment for relevant parasites
• removing a foreign body
• environmental changes to reduce triggers
• oxygen and stabilization for respiratory distress

Asthma treatment may involve inhaled medication delivered through a feline aerosol chamber. Medication should be prescribed and demonstrated by a veterinarian.

Do not use a human inhaler, cough syrup, antihistamine, antibiotic, or steroid without veterinary instructions.

What can you safely do at home while waiting for an appointment?

If your cat is breathing comfortably and your veterinarian has advised routine rather than emergency assessment, you can focus on observation and reducing obvious irritants.

Helpful steps include:

• avoid cigarette and vape smoke around the cat
• stop using strong aerosols, perfumes, incense, or diffusers in the cat’s space
• consider a lower-dust litter if litter dust seems to trigger episodes
• keep the environment calm
• record a video of coughing
• note frequency and duration
• monitor appetite, energy, and breathing

Do not force steam, essential oils, supplements, or medication on a coughing cat unless your veterinarian recommends it.

Frequently asked questions

What does a cat cough sound like?

It often sounds dry, hacking, harsh, or wheezy. Cats may crouch low and extend the neck while coughing. Some coughs end with a gag, which can make them look like a hairball episode.

What does it mean when a cat coughs?

It usually means the airways are irritated or inflamed. Asthma, bronchitis, infection, parasites, irritants, foreign material, and other respiratory conditions are possible causes.

Why does my cat cough sometimes?

Intermittent coughing may occur with mild asthma, occasional irritant exposure, or other airway disease. Recurrent episodes should be discussed with a veterinarian even if the cat seems normal between them.

Why is my cat coughing but not throwing up?

That pattern can indicate a true respiratory cough rather than retching. Cats often cough without producing anything, especially with asthma or bronchitis.

Why does my cat sound like it is coughing up a hairball but nothing comes out?

A respiratory cough is commonly mistaken for a hairball attempt. Repeated hacking with no hair produced is a good reason to show a video to your veterinarian.

Why does my cat have a dry hacking cough?

Dry hacking can occur with asthma, bronchitis, parasites, irritants, or other lower-airway disease. The sound alone cannot determine the cause.

Is cat coughing from heart disease?

It is possible for heart or chest disease to affect breathing, but coughing is less commonly a primary sign of feline heart disease than it is in dogs. Cats with heart disease may show rapid or difficult breathing instead.

Can dusty litter make a cat cough?

Dust can irritate sensitive airways and may worsen symptoms in cats with asthma or bronchitis. Persistent coughing still needs veterinary evaluation because litter may not be the only cause.

A note on sources and method

This article is based primarily on current veterinary guidance from PetMD, VCA Animal Hospitals, the Merck Veterinary Manual, and Cornell University’s Feline Health Center. These sources consistently describe feline coughing as a respiratory sign that can be confused with hairball retching and identify asthma/bronchitis, infection, parasites, irritants, and other airway disorders among important causes. Emergency guidance is intentionally conservative because cats with open-mouth breathing, cyanosis, or marked respiratory effort can deteriorate quickly. Veterinary/expert review is recommended before publication.