Why Is My Cat Coughing? Vet Guide to Feline Coughs 🐱🩺

By Dr Duncan Houston

A cat’s cough can be surprisingly easy to miss. It often sounds like a dry hack, gag, or wheeze rather than the loud cough we expect in humans.

Sometimes it is nothing more than a hairball. Other times it may be the first sign of asthma, infection, parasites, or heart disease.

As a veterinarian, I regularly see cats brought into clinics for coughing that owners initially thought was just hairballs. Learning how to recognise the difference can help you act quickly if your cat needs medical attention.

🩺 Quick Answer

Cats may cough due to hairballs, asthma, respiratory infections, parasites, or heartworm disease. Occasional gagging related to hairballs can be normal, but persistent coughing, wheezing, or breathing difficulty should always be evaluated by a veterinarian.

😺 What Does a Cat Cough Look Like?

Cat coughing often looks different from human coughing.

Common signs include:

😾 Dry hacking cough
A repetitive hacking sound with no mucus.

😿 Wet cough
Moist sounding cough that may include gagging or swallowing.

😤 Wheezing
A high pitched sound when breathing out, often associated with asthma.

🤢 Gagging or retching
Often mistaken for coughing and commonly linked to hairballs.

Because these signs can look similar, veterinary examination is sometimes needed to determine the exact cause.

🔎 What Are the Most Common Causes of Coughing in Cats?

Several conditions can cause coughing in cats.

🫁 Feline Asthma

Feline asthma is one of the most common causes of coughing.

Signs may include:

• dry recurrent cough
• wheezing
• open mouth breathing
• episodes triggered by dust or smoke

Asthma occurs when inflammation narrows the airways, making breathing more difficult.

🧶 Hairballs

Hairballs are a frequent cause of gagging and retching.

Cats swallow hair during grooming, which can accumulate in the stomach and eventually be expelled.

Long haired cats are particularly prone to hairballs.

Regular grooming tools such as PURRZ™ Grooming Brushes can help reduce loose hair and minimise hairball formation.

🦠 Respiratory Infections

Respiratory infections are more common in kittens or cats exposed to other cats.

Signs may include:

• coughing
• sneezing
• nasal discharge
• lethargy

These infections may be viral or bacterial.

🦟 Heartworm Disease

Heartworm infection is uncommon but possible in cats.

Signs may include:

• coughing
• vomiting
• breathing difficulty
• sudden collapse in severe cases

Unlike dogs, treatment options for cats are limited, so prevention is very important.

🐛 Lungworm or Parasites

Outdoor cats may develop lungworm infections.

These parasites can cause:

• chronic coughing
• breathing difficulty
• reduced activity

Cats typically become infected by eating snails, rodents, birds, or frogs.

🩺 When Should You See a Vet?

Veterinary attention is recommended if your cat shows:

• coughing lasting more than two or three days
• laboured breathing
• wheezing
• reduced appetite
• lethargy
• coughing combined with vomiting

Breathing problems should always be treated as urgent.

As a veterinarian, I often remind cat owners that early diagnosis can prevent small respiratory problems from becoming serious.

🧪 How Veterinarians Diagnose Cat Coughs

Your veterinarian may perform several tests to determine the cause.

Common diagnostic steps include:

• physical examination and chest auscultation
• chest X-rays
• blood tests
• heartworm testing
• fecal tests for parasites

These tests help identify whether the cough originates from the lungs, heart, or digestive system.

💊 Treatment Options for Coughing Cats

Treatment depends on the underlying cause.

Examples include:

🫁 Asthma
Inhaled medications such as fluticasone or oral steroids.

🦠 Infections
Antibiotics or antiviral medications when appropriate.

🧶 Hairballs
Dietary changes, grooming, and hairball remedies.

🦟 Heartworm disease
Supportive care and prevention.

Your veterinarian will choose treatment based on diagnosis and severity.

🏡 How Can You Help a Coughing Cat at Home?

Some environmental changes may help reduce coughing triggers.

Helpful steps include:

• using air purifiers or HEPA filters
• reducing household dust and aerosols
• avoiding smoke or strong perfumes
• grooming long haired cats regularly
• maintaining parasite prevention

Reducing allergens and loose hair can make a significant difference for some cats.

🎯 Final Thoughts

Occasional gagging due to hairballs may be normal, but persistent coughing should never be ignored.

Because several serious conditions can cause similar symptoms, veterinary assessment is the safest way to determine the cause.

Early diagnosis and treatment can greatly improve your cat’s comfort and long term health.

❓ Frequently Asked Questions

Should I worry if my cat coughs once?

Occasional gagging related to hairballs is common. Persistent coughing should be evaluated by a veterinarian.

Can cats develop asthma?

Yes. Feline asthma is a common respiratory condition and is usually manageable with medication.

Is coughing always caused by hairballs?

No. Asthma, respiratory infections, parasites, and heartworm disease can all cause coughing in cats.

How can I reduce hairballs in my cat?

Regular grooming, high quality diets, and hairball prevention products can help reduce hair accumulation.

If you ever want help monitoring your pet’s symptoms, behaviour, or health changes, tools like ASK A VET™ can help you track everything in one place and share information easily with your veterinarian. 🐾