7 Reasons Your Cat Keeps Coughing (And When It’s Time to See the Vet)

Cat coughing is never considered normal, and frequent or persistent coughing usually points to an underlying problem in the airways, lungs, or heart that needs a veterinarian’s attention. Common culprits include feline asthma, respiratory infections, heartworm disease, and inhaled irritants. Many owners assume a coughing cat is just bringing up a hairball, but the two are surprisingly different, and confusing them can delay important care. Because cats are experts at hiding illness, a cough may be one of the only outward clues that something is wrong. At University Veterinary Hospital in Shreveport, our team helps cat owners sort out what’s behind those worrying hacking sounds every week. In this article, we’ll explain what a true feline cough looks like, walk through seven of the most common causes, outline the signs that call for prompt care, and describe how veterinarians diagnose and treat the problem.

Do Cats Cough?

Yes, cats do cough, though it happens far less often than in dogs, which makes any recurring cough worth noticing.

A cough is a reflex that helps clear the airways of mucus, debris, or irritants. A single cough after sniffing a dusty corner isn’t cause for alarm. Repeated bouts of cat coughing, however, suggest the airways are inflamed, narrowed, or irritated by something that won’t go away on its own.

What Cat Coughing Looks Like

Feline coughs can be easy to mistake for something else. Most cats crouch low to the ground, stretch their neck forward, and make a dry, hacking or wheezing sound. Some owners describe the posture as looking like their cat is trying to bring up a hairball, except nothing comes out.

Coughing vs. Hairballs, Sneezing, and Gagging

Telling these behaviors apart can help your veterinarian narrow down the cause:

• Coughing comes from the airways and lungs, and it typically produces no hairball or food.
• Retching or vomiting involves the stomach and abdomen heaving, often ending with a hairball, fluid, or food on the floor.
• Sneezing involves the nose and usually points to an upper respiratory issue rather than the lungs.
• Reverse sneezing sounds like rapid, noisy inhaling and is less common in cats than in dogs.

If you’re unsure what you’re seeing, try to capture a short video on your phone. A recording of the episode can be incredibly helpful during your cat’s appointment, since cats rarely cough on cue in the exam room.

What Causes Cats to Cough?

Many conditions can trigger cat coughing, ranging from mild irritation to serious disease affecting the lungs or heart.

Below are seven of the most common reasons veterinarians see coughing in feline patients.

1. Feline Asthma

Asthma is one of the leading causes of chronic cat coughing. It occurs when the airways become inflamed and constrict in response to allergens, leading to coughing, wheezing, and sometimes open-mouth breathing. Asthma affects an estimated 1 to 5 percent of cats and often worsens over time without management.

2. Respiratory Infections

Viral and bacterial infections can spread from the upper airways into the lower respiratory tract. Pneumonia and bronchitis may cause a wet or productive cough, along with fever and lethargy.

3. Heartworm Disease

Many owners think of heartworms as a dog problem, but cats can be infected too. In cats, even a small number of worms can trigger heartworm-associated respiratory disease (HARD), which closely mimics asthma. Louisiana’s warm, mosquito-heavy climate puts Shreveport cats at higher risk, including indoor cats.

4. Lungworms and Other Parasites

Cats that hunt birds, rodents, snails, or lizards can pick up lungworms, which live in the respiratory tract and cause chronic coughing.

5. Environmental Irritants and Allergies

Cigarette smoke, dusty litter, aerosol sprays, candles, and air fresheners can all irritate sensitive feline airways. Seasonal pollen and mold can also play a role, so cat coughing that flares at certain times of year may have an environmental trigger.

6. Foreign Objects

Inhaled grass blades, seeds, or small particles can lodge in the airway. When cat coughing starts suddenly and won’t let up, a foreign object is one possibility your veterinarian will consider.

7. Tumors and Growths

In older cats especially, tumors in the lungs or chest can lead to cat coughing that slowly gets worse. Early detection gives your cat the most options.

When Does a Coughing Cat Need Veterinary Attention?

Any cat coughing more than once or twice should be seen by a veterinarian, and some situations call for same-day or emergency care.

Because cats are skilled at masking discomfort, by the time a cough becomes noticeable, the underlying condition may already be well established. Waiting to see if it goes away can allow airway inflammation or infection to progress. As a general rule, it’s wise to book an exam if your cat’s cough lasts longer than a day or two, returns repeatedly over weeks or months, or seems to be getting more frequent.

Signs That Mean Seek Help Immediately

Some symptoms signal a breathing emergency. Contact University Veterinary Hospital right away at , or go to the nearest emergency hospital after hours, if you notice:

• Open-mouth breathing or panting, which is never normal in cats
• Blue, gray, or pale gums or tongue
• Rapid or labored breathing, with the belly moving noticeably with each breath
• Coughing fits that won’t stop or leave your cat weak
• Collapse, hiding, or extreme lethargy
• Coughing up blood

Other Symptoms to Mention

Less urgent signs still provide valuable clues. Keep track of changes in appetite, weight loss, nasal discharge, sneezing, fever, or reduced activity. Note when the coughing happens, such as after play, at night, or after you clean the litter box. These patterns can point your veterinarian toward a specific cause, like asthma triggered by dusty litter or exertion.

Cat coughing that appears alongside any of these changes deserves attention sooner rather than later.

How Is the Cause of a Cat’s Cough Diagnosed?

Pinpointing why a cat is coughing usually takes a combination of a thorough history, a physical exam, and targeted testing.

Many conditions behind cat coughing look and sound alike, so diagnostic testing helps your veterinarian move past guesswork. Asthma and heartworm disease, for example, can produce nearly identical symptoms but require very different management.

The Physical Exam and History

Your veterinarian will start by asking about your cat’s lifestyle, indoor or outdoor access, parasite prevention, household exposures, and when the coughing began. They’ll listen carefully to the heart and lungs for wheezes, crackles, or murmurs, check body temperature, and evaluate breathing effort. Any videos you’ve recorded at home can be especially useful at this stage.

Common Diagnostic Tests

Depending on what the exam reveals, the veterinary team may recommend one or more of these tests:

• Chest X-rays to look at the lungs, airways, and heart size
• Bloodwork to assess overall health and look for signs of infection or inflammation
• Heartworm antigen and antibody testing
• Fecal testing to check for lungworms and other parasites
• Airway sampling, such as a bronchoalveolar lavage, to examine cells and culture for bacteria
• Echocardiogram (heart ultrasound) if heart disease is suspected

Not every cat needs every test. Your veterinarian will tailor the diagnostic plan to your cat’s age, symptoms, and history, and explain what each step is designed to uncover. For some cats, the answer becomes clear quickly. Others with chronic cat coughing may need a stepwise approach to rule out several possibilities.

How Will the Cough Be Treated?

Treatment depends entirely on the underlying cause, which is why an accurate diagnosis comes first.

There’s no single remedy for cat coughing, and over-the-counter human cough medicines can be dangerous for cats. Never give your cat any medication without your veterinarian’s direction. Once the source of the problem is identified, your veterinary team will build a plan suited to your cat’s specific needs.

Treating Inflammation and Infection

Cats with asthma often benefit from medications that reduce airway inflammation and open narrowed airways. Some can be given by mouth, while others are delivered through an inhaler fitted with a cat-sized spacer and mask. Bacterial infections may require antibiotics, and parasites such as lungworms are treated with appropriate deworming medications.

Managing Heartworm and Chronic Conditions

Unlike in dogs, there’s no approved medication to kill adult heartworms in cats, so care focuses on managing respiratory symptoms and inflammation. This makes year-round heartworm prevention especially important for cats in the Shreveport area. Cats with tumors, heart disease, or other complex conditions may need advanced imaging, specialist referral, or longer-term management.

Environmental Changes

Your veterinarian may also suggest reducing airway irritants at home, such as switching to a low-dust litter or avoiding smoke and scented products. Follow-up visits help track progress and adjust the plan over time.

Helping Your Coughing Cat Breathe Easier in Shreveport

Cat coughing can stem from something as manageable as dusty litter or as serious as heartworm disease, and the only way to know for sure is a veterinary evaluation. Because cats tend to hide signs of illness, a cough is an important message worth taking seriously, even if your cat otherwise seems fine. The sooner the cause is identified, the sooner your cat can get relief and the better the long-term outlook for many respiratory and heart conditions. At University Veterinary Hospital, our team offers thorough exams, in-house diagnostics, and compassionate care for cats of every age. We’ll listen to your concerns, review any videos you’ve captured, and walk you through each step of the diagnostic and treatment process. If your cat has been coughing, wheezing, or breathing differently, call us at to schedule an appointment.