Aspiration Pneumonia in Bulldogs and French Bulldogs

By: Dr. Roy Kraemer |
DVM, Bulldog Specialist Veterinarian
Aspiration pneumonia in Bulldogs and French Bulldogs, guide by Dr. Kraemer
This is the one I would most like bulldog owners to understand before they ever need to. Aspiration pneumonia happens when food, fluid or stomach contents go down the wrong way and end up in the lungs, and a flat faced dog is built in a way that makes it easier for that to happen. It is serious, it moves quickly, and it is also one of the most preventable things on this site once you know which habits and which underlying problems set it up. If you have a dog who seems unwell right now, do not read first and call second. Call your veterinarian. The rest of this page is for understanding why it happens and how to lower the odds of it happening again.

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Breathing trouble needs urgent care

If your Bulldog is breathing hard, has a blue or gray tongue, collapses, or becomes markedly weak after vomiting or regurgitating, seek urgent veterinary care. Do not wait for a supplement or home remedy to help.

From Dr. Kraemer’s inbox
“Teddy brought up his breakfast on Sunday, which he does now and then, and we did not think much of it. By Monday evening he was coughing and did not want his dinner, and this morning he just wants to lie down. The coughing is what worries me. Is this something that came from the vomiting, or are they two separate things?”

A typical message from a Bulldog owner, shortened, with the name changed.
Dr. Roy Kraemer, DVM

Dr. Kraemer’s reply

They are not two separate things, and that message is the reason this page exists.

The sequence described there is the one I see most often. Something comes back up, the dog seems to recover, and a day or two later the chest is involved. The gap in between is what fools owners, because by the time the coughing starts the vomiting feels like old news. It is not. It is very likely where this began.

A dog in that description belongs in front of a veterinarian today rather than at the end of the week. Please do not wait to see whether tomorrow is better, and please do not reach for anything from a cupboard first. Chest radiographs and an examination are what answer this, and the answer changes what happens next considerably.

The part worth taking from it afterwards is the prevention. If a dog brings food back up more than occasionally, that is the problem to go after, because it is the thing loading the gun. Dealing with the reflux, the airway or the feeding posture is how you stop this happening a second time.

Dr. Roy Kraemer, DVM

What Is Aspiration Pneumonia in Bulldogs?

Bulldogs, French Bulldogs, and other brachycephalic breeds are more prone to aspiration pneumonia than other dog breeds.

Aspiration occurs when they inhale foreign substances, often as a result of:

  1. Vomiting ingesta
  2. Regurgitated food
  3. Gastric acid reflux

The aspiration leads to lung damage due to an immediate inflammatory response to the inhaled material. The situation can worsen due to infection from bacteria in the aspirated content.

The resulting acute inflammation and infection are life-threatening and require prompt veterinary attention.

5 Must-Know Facts About Bulldog Aspiration Pneumonia

  1. One important risk factor to assess is BOAS  
  2. Have breathing and swallowing problems assessed early; your veterinarian will advise whether airway surgery is appropriate.
  3. Inhaled vomit, regurgitated food, and gastric acid can inflame the lungs and introduce infection.
  4. Treatment is tailored to oxygen needs, the cause of aspiration and whether infection is present.
  5. Discuss supportive care after veterinary assessment: Dr. Kraemer’s Aspiration Pneumonia Bundles 

What Are The Symptoms of Inhalation Pneumonia in Bulldogs?

The symptoms of aspiration pneumonia often include:

  • Breathing difficulties: Breathing may be rapid, shallow, or noisy
  • Swallowing difficulties
  • Coughing: Often persistent and may be wet or dry.
  • Fever: An elevated temperature is common due to infection.
  • Discharge from the nasal passages: Mucus or pus-like discharge may be present.
  • Rapid breathing: abnormal shallow rapid breathing
  • Bluish-purplish tongue (cyanosis): A sign of oxygen deprivation, known as cyanosis.
  • General weakness and intolerance to exercise due to oxygen deprivation.
  • Loss of energy and reduced appetite: A noticeable decrease in energy or activity levels.

 

What Are The Leading Causes Of Bulldog Aspiration Pneumonia?

An important condition to assess in a Bulldog with aspiration risk is brachycephalic syndrome (BCS)

1. BOAS AND BULLDOG PNEUMONIA  

There’s a strong connection between BOAS (Brachycephalic Obstructive Airway Syndrome) and aspiration pneumonia.

BOAS conditions include:

Bulldog elongated soft palate surgeon view close up

Those airway obstructions create negative pressure in the airways, potentially pulling stomach contents into the esophagus and throat.

🚨This can lead to the aspiration of these contents into the lungs, increasing the risk of aspiration pneumonia.

2. Reflux, Regurgitation and Vomiting

Airway and digestive problems can occur together in Bulldogs. Reflux, regurgitation and vomiting can increase aspiration risk, but they do not share one universal cause. Your veterinarian will assess the airway, swallowing and digestive history to identify what needs treatment.

3. BULLDOG MEGAESOPHAGUS LEADING TO ASPIRATION PNEUMONIA:

Megaesophagus is dilation and poor movement of the esophagus. Regurgitation from megaesophagus increases the risk of aspiration pneumonia.

Original Bulldog megaesophagus contrast radiograph with the source’s red arrow annotations.

4. BULLDOG ASPIRATION PNEUMONIA / OTHER:

Less common are oral, laryngeal, and pharyngeal problems, such as

  • GERD
  • Hiatal Hernia
  • Hypoplastic trachea
  • Laryngeal nerve paralysis: (BOAS)
  • Laryngeal collapse: (BOAS)
  • Myasthenia gravis: neuromuscular disease
  • Oropharyngeal and Laryngeal Tumors

bulldog hiatal hernia radiograph

Inhalation Pneumonia in Bulldogs and French Bulldog  DIAGNOSIS:

Diagnosing aspiration pneumonia in bulldogs involves a combination of clinical evaluation, diagnostic tests, and imaging.

Here’s an overview of the common steps:

  1. Veterinary examination: Physical examination and breathing assessment
  2. Imaging: Chest radiographs are essential for diagnosing pneumonia, showing areas of lung consolidation or infiltrates typical of aspiration pneumonia.
  3. Bronchoscopy: 
  4. Blood Test:  Complete blood count (CBC) and biochemistry profiles may help identify infection, inflammation, or other systemic issues contributing to the dog’s condition.
  5. Pulse Oximetry and Blood Gas Analysis: These tests measure oxygen levels in the blood, assessing how well the dog’s lungs are functioning.
  6. Airway Cytology and Culture: These procedures collect samples from the lower airways to identify bacteria, fungi, or other pathogens responsible for the infection. This also helps guide targeted antibiotic therapy.
    • bronchoalveolar lavage
    • transtracheal wash

Sedation Warning:

Tests that require sedation or anesthesia, like radiographs, endoscopy, BAL, or TTW (a wash or lavage), should be modified or placed on hold until the patient’s status is improved.

Stress Warning:

Diagnostic tests for aspiration pneumonia should be conducted cautiously, as even minor stress can exacerbate your bulldog’s condition. Bulldogs are susceptible to stress due to their compromised respiratory systems, and any added pressure can worsen breathing difficulties or trigger complications.

🚨 Diagnostics should be performed by professionals experienced with brachycephalic breeds in a calm, low-stress environment.

bulldog pulse oximeter tissue oxygen monitoring

From Dr. Kraemer’s exam room
A bulldog specialist, 20 years breed specific clinical experience

The delay is the danger

The thing I would most like owners to carry away from this page is the time gap. The inhaling happens on one day and the dog looks unwell on another, and that distance between the two is what costs dogs their best chance of a straightforward recovery.

So if your dog has brought anything back up and then seems off, make the connection out loud when you ring the practice. Say that he vomited or regurgitated, say when, and say what you have noticed since. That one sentence changes what the person on the phone does with your call, and it changes which tests get run first.

The other half of my advice is about afterwards. A dog who has had this once has shown you that something is making it easy for him, and that something is usually reflux, the airway, or how he is fed. Going after that is not an optional extra once he is home. It is the part that decides whether you are here again.

And a plain word on supplements, since this is a store as well as a library. Nothing sold here treats pneumonia. That is antibiotics, oxygen and a veterinary team, and anything else is a distraction while the clock runs.

Dr. Roy Kraemer, DVM

Aspiration Pneumonia Prevention in Bulldogs and French Bulldogs

If BOAS is contributing to your Bulldog’s breathing or reflux problems, discuss its management with your veterinarian as part of preventing another aspiration episode.

1. BOAS SURGICAL REPAIR

Interventions like widening a pinched nose or trimming an elongated palate can significantly reduce the risk.

2. GERD AND HIATAL HERNIA REPAIR:

Similarly, GERD resulting from a hiatal hernia can be managed by surgical repair, while ongoing management of the megaesophagus will help control associated vomiting and regurgitation.

3. PNEUMONIA PREVENTION WITH DIET AND FEEDING

If your bulldog is already displaying symptoms like vomiting, retching, and regurgitation, preventing aspiration pneumonia involves carefully managing these symptoms through:

  • Diet modification
  • Using a slow feeder
  • Smaller, more frequent meals
  • Elevating the feeding station

proper Bailey Chair feeding of megaesophagus bulldog

4. PNEUMONIA PREVENTION WITH DRUGS:

Additionally, medications can play a key role in prevention, including:

  • Anti-nausea drugs
  • Antiemetics: To control vomiting
  • H2 blockers and proton pump inhibitors: To reduce acid reflux

Effective management of these symptoms may help protect your bulldog from the serious risks of aspiration pneumonia.

🐾 An honest word about products
Pneumonia is a hospital problem, not a shopping problem

Let me be completely clear, because this is a page where getting it wrong costs a dog. Nothing sold here treats pneumonia, shortens it or substitutes for the antibiotics and the care a sick dog needs. If she is unwell, the answer is your veterinarian today, not an order.

Where supplements may have a quiet role is afterwards and around the edges. Supporting a dog through recovery, helping the gut settle after a course of antibiotics, and supporting the day to day wellbeing of a dog who is prone to the reflux and regurgitation that set this up in the first place. Prevention here is mostly about feeding, posture and the underlying airway, all of which this page covers, and those cost nothing.

Dr. Kraemer’s Bully Immune Support Plus, current 60 soft-chew jar.

See daily gut support

To be clear: supplements or topicals are not substitutes for prescribed treatment. If your dog is unwell, is being treated for a condition, or is already on medication, review any supplement or topical with your veterinarian so it fits the plan you are already following. This page is educational and is not a diagnosis or a treatment plan for your own dog.

How To Treat Pneumonia in Bulldogs and French Bulldogs?

Short-term management of bulldog aspiration pneumonia often involves

  • antibiotics
  • regurgitation and vomiting control
  • dietary adjustments
  • maintaining a calm, stress-free environment for recovery.

SEVERE PNEUMONIA CRITICAL CARE TREATMENT:

In more severe or critical cases, hospitalization for advanced care, including intravenous fluids and more intensive monitoring, may be necessary.

1. PNEUMONIA OXYGEN THERAPY

Oxygen therapy is often a vital component of the initial treatment to stabilize your bulldog, especially in severe cases.

This can include an oxygen cage, nasal cannula, or other oxygen supplementation methods to support breathing while reducing stress on the respiratory system.

bulldog puppy Pneumonia in oxygen cage

2. BULLDOG PNEUMONIA IV FLUID THERAPY:

In critical cases when a bulldog is unable or unwilling to drink sufficient water, intravenous (IV) fluid administration becomes essential.

This approach not only helps maintain proper hydration but also serves as a means to effectively deliver medications, ensuring that your pet receives the necessary treatment during their recovery process.

3. PNEUMONIA AND STRESS-FREE REST:

Rest is essential for your bulldog puppy’s quick recovery. Keep your puppy calm, in a confined area away from other pets or active children.

Physical exertion or stress can worsen lung function, interfering with proper oxygen delivery to tissues and potentially causing hypoxia or ventilation-perfusion imbalance.

4. PNEUMONIA NEBULIZER & COUPAGE:

 Hospital Nebulization Benefits: It delivers a fine mist of saline solution or medication directly to the airways. This helps to:

  • Loosen mucus and secretions, making them easier to cough up.
  • Hydrate the irritated airways.
  • Deliver medication directly to the lungs (depending on the prescribed medication).

 Home Steam Room as an Alternative: While a steam room can be helpful in a pinch, it has limitations compared to nebulization:

  • Less Controlled: The humidity level and medication delivery are less precise with steam.
  • Potential Irritation: Hot, uncontrolled steam could irritate the puppy’s airways further.
  • Safety Risk: Leaving a puppy unattended in a bathroom with hot water is a safety hazard.

5. BULLDOG PNEUMONIA / RX:

  • Broad-spectrum antibiotics
  • Anti-nausea
  • Anti-vomit
  • Anti-reflux

6. QUALITY NUTRITION FOR PNEUMONIA:

Quality food and quality nutritional support are critical

7. SUPPORTIVE NUTRITION AND SUPPLEMENTS

Supplements do not replace diagnosis, oxygen, antibiotics, or other treatment prescribed by your veterinarian. If you use supportive nutrition, review the ingredients and dosing with your veterinarian.

 

A. BULLDOG IMMUNE SUPPORT SUPPLEMENT:

B. BULLDOG GASTROINTESTINAL SUPPORT FOR PNEUMONIA:

C. BULLDOG MULTIVITAMINS:

 

4. RELAX and CALM THERAPEUTICS FOR BULLDOG PNEUMONIA:

Aspiration Pneumonia in Bulldogs / BOAS SURGERY:

If your Bulldog is diagnosed with brachycephalic obstructive airway syndrome, discuss surgical options and timing with a veterinarian experienced with brachycephalic breeds.

Without timely intervention, these conditions can worsen, potentially leading to serious complications like megaesophagus and aspiration pneumonia.

Early correction helps prevent the progression of these issues, enhancing your bulldog’s overall health and quality of life.

Bulldog stenotic nares before and after corrective surgery

Dr. Kraemer’s Bulldog Aspiration Pneumonia RULE of Thumb:

Pneumonia in bulldog puppies is a serious condition that may necessitate hospitalization in a critical care unit, often requiring weeks of intensive and costly treatment.

Medical teams will monitor tissue oxygenation levels with tools like a pulse oximeter to ensure effective management and recovery.

French Bulldog receiving oxygen support for pneumonia

From Dr. Kraemer’s exam room
A bulldog specialist, 20 years breed specific clinical experience

The anesthesia conversation nobody has

A large share of the aspiration pneumonia I have seen in this breed did not begin with a dog eating something foolish. It began on a procedure table, and it was preventable.

Here is the mechanism in plain terms. Anesthesia relaxes everything, including the ring of muscle that normally keeps stomach contents where they belong. A flat faced dog already has a crowded airway and often a sloppy esophagus on top of that. Put those together and material can travel the wrong way while the dog is asleep and cannot cough it back.

Which is why the conversation before any procedure matters more for your Bulldog than it does for most dogs, and why I would want you to have it out loud rather than assume it has been had. Tell them if your dog regurgitates, even occasionally. Tell them if he has ever had a breathing episode. Ask what their plan is for recovery, because the risky window is often after the procedure rather than during it, when the tube comes out and the dog is still half asleep.

None of that is a reason to avoid a needed procedure. A rotten tooth or a torn ligament has to be dealt with, and avoiding anesthesia has its own costs. It is a reason to make sure the team knows what they are working with before they start.

And when he comes home, watch him properly for a few days rather than assuming the risk ended at the door.

Dr. Roy Kraemer, DVM

Inhalation Pneumonia in Bulldogs TIPS & WARNINGS:

Below are aspiration pneumonia essential tips and warnings courtesy of Dr. Kraemer

#1 BULLDOG PNEUMONIA CALM & RELAXED TIP:

While recovering, you should keep your bulldog primarily indoors, rested, and stress-free.

#2 BULLDOG AND FRENCH BULLDOG PNEUMONIA NEBULIZER TIP:

Use a nebulizer only as directed by your veterinarian. Perform coupage only after your veterinary team has shown you the correct technique.

#3 ASPIRATION PNEUMONIA COUPAGE TIP:

Coupage involves cupping your hands against your bulldog’s chest and tapping rhythmically to help dislodge secretions from the lungs, creating a sound similar to a galloping horse.

You must apply enough pressure to effectively break up the mucus but at the same time be gentle to avoid causing any discomfort or harm to your French bulldog puppy.

#4 PNEUMONIA LAB WORK PRE-OP PREP TIP:

Follow the fasting and water instructions provided by your anesthesia team. The safest timing depends on your Bulldog’s age, medical status, and planned procedure.

#1 BULLDOG PNEUMONIA OTC RX WARNING:

Do not give over-the-counter cough medicine unless your veterinarian specifically instructs you to do so.

#2 ASPIRATION PNEUMONIA ANTIBIOTICS WARNING:

Give antibiotics exactly as prescribed and do not stop early. The drug and duration should reflect your Bulldog’s response and, when available, culture results.

#3 PNEUMONIA RE-CHECK EXAM WARNING:

Keep the recheck schedule recommended by your veterinarian. The timing of repeat chest radiographs depends on your Bulldog’s clinical progress.

#4 FRENCH BULLDOG PNEUMONIA BODY ROTATION WARNING:

Ask the veterinary team how often your Bulldog should be repositioned. Hospitalized or weak dogs may need regular position changes and close monitoring.

Asked by Bulldog owners
Aspiration pneumonia: quick answers

How soon after inhaling something would a dog look unwell?

Not always straight away, and that is the trap. A dog can bring food up, appear to shake it off, and show chest signs a day or two later. The delay is why owners so often treat the vomiting and the later illness as unrelated events. If the two happened within a few days of each other, mention both when you ring the practice.

Why are bulldogs more prone to this than other breeds?

Several features line up unhelpfully. The airway is narrower and the effort of breathing through it generates pressures that encourage reflux, and reflux gives material the chance to travel the wrong way. Add a tendency to gulp food and, in some dogs, an esophagus that is not moving things along properly, and the odds shift. None of it is inevitable, which is the point of the prevention section.

How is it diagnosed?

An examination and chest radiographs are the backbone of it, since the pattern in the lungs is what distinguishes this from other reasons a dog might be coughing. Further tests, including sampling the airway for culture, are chosen case by case. This is not something that can be settled over the phone or by description, which is why the appointment matters.

Can any of it be treated at home?

The treatment itself, no. Antibiotics chosen for this, and in more serious cases oxygen and fluids, are what turn it around. What does happen at home is the supporting work your veterinary team asks of you afterwards, which can include nebulizing, coupage, keeping a dog quiet, and repositioning a weak dog. Ask them to show you rather than working from a video.

Can I give him anything from the cupboard in the meantime?

Please do not. Human cough and cold preparations are a genuine hazard for dogs, and a cough that comes from material in the lungs is not a cough you want to suppress anyway. Anything you give before the appointment also muddies what the veterinarian is looking at. The useful thing you can do in the meantime is keep him calm and get him seen.

How do I stop it happening again?

By going after whatever let it happen in the first place, and in bulldogs that is usually one of three things: reflux and regurgitation, the airway, or the way he is fed. Raising the bowl, smaller portions, slowing a gulper down, and having the airway properly assessed are the practical levers. A dog who has had this once has told you something, and that information is worth acting on.

Will a supplement help?

Not with the pneumonia, and I would rather say that bluntly than let anyone lose a day to it. Where supplements have a place is the quieter work afterwards and around the edges: supporting the gut through a course of antibiotics, and keeping an anxious or gulping dog settled, since stress and gulping are part of how this gets started. Those may help, alongside whatever your veterinarian advises.

He seems better. Can we stop the antibiotics early?

No. Looking better and being better are different things here, and the chest can still be clearing well after a dog is bright again. The length of the course and the timing of repeat radiographs are set by your veterinarian from how your own dog is responding. Stopping early is one of the commoner reasons this comes back.

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References

  • Merck Veterinary Manual. Aspiration Pneumonia in Small Animals
  • Dear JD. Bacterial pneumonia in dogs and cats. Veterinary Clinics of North America, Small Animal Practice
  • Poncet CM et al. Prevalence of gastrointestinal tract lesions in brachycephalic dogs with upper respiratory syndrome. Journal of Small Animal Practice
  • Darcy HP et al. Mitral valve and respiratory disease, risk of aspiration pneumonia following general anesthesia in dogs. Journal of Small Animal Practice

By Dr. Roy Kraemer

Roy Kraemer, DVM is the founder of Vet4Bulldog and the V4B line of preventive care products for Bulldogs and French Bulldogs. A Tufts University veterinary school graduate, he built and ran a Southern California veterinary hospital dedicated exclusively to these two breeds, and spent over 20 years working almost entirely with them, including years of rescue work alongside So Cal Bulldog Rescue. In practice he combined conventional medicine and surgery with regenerative therapies including stem cell treatment, PRP and therapeutic laser, alongside nutrition, topical therapy and supplements. His emphasis throughout has been preventive care and longevity rather than treating problems once they take hold. He has been asked to comment on Bulldog and French Bulldog health by Business Insider, HuffPost, The US Sun, NBC Los Angeles and the OC Register.

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The information provided on this platform is for general informational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your veterinarian regarding any medical condition. It's important to always consider professional medical advice promptly and not to delay seeking it based on information you've read on this platform. Any reliance on the information provided here is entirely at your discretion.