Health
Is this true BOAS?
No, this breed lacks the flat-faced anatomy behind true BOAS. The relevant senior condition is laryngeal paralysis, a different mechanism.
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Brachycephalic Obstructive Airway Syndrome (BOAS) in Old English Sheepdogs: What Every Owner Should Know
Quick answer
Is this true BOAS?
No, this breed lacks the flat-faced anatomy behind true BOAS. The relevant senior condition is laryngeal paralysis, a different mechanism.
A senior dog whose breathing has gotten noticeably louder or raspier isn't showing brachycephalic airway syndrome. It's more likely an age-related change in the voice box that's worth its own explanation.
This is most relevant to owners of dogs past eight or nine, when age-related laryngeal changes become more likely, and especially for owners who noticed the change gradually rather than all at once.
Important reminder
This guide is not medical advice. If your dog shows pain, sudden behavior change, or worsening symptoms, consult a licensed veterinarian.
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Check this first
When breathing changes in a senior dog are an emergency
Loud, harsh breathing that suddenly worsens, blue or gray gums, collapse, or a dog that seems to be struggling to get air even at rest are emergencies requiring immediate veterinary care. Dogs with laryngeal paralysis are also at meaningfully higher risk of heatstroke than unaffected dogs, since the condition reduces how efficiently they can move air to cool themselves, so any collapse or severe distress during warm weather should be treated as urgent.
This is genuinely a different condition from true BOAS, which is a fixed structural airway obstruction present from birth in flat-faced breeds. Laryngeal paralysis is typically an acquired, age-related change in the nerves controlling the voice box, and it's diagnosed with a specific exam, often under light sedation, rather than assumed from breathing sounds alone.
If any of these apply, call your vet or an emergency clinic now. The rest of this page is for the cases that are not an emergency.
What this problem looks like
This term is often searched by owners of senior dogs with noisy or labored breathing, but true BOAS doesn't apply to this breed's normal facial structure. The condition that genuinely fits this picture is laryngeal paralysis, an age-related weakening of the nerves controlling the voice box, common in aging large-breed dogs.
Common triggers
- Advancing age, typically appearing in dogs past eight or nine
- Exertion or excitement that increases airflow demand
- Warm weather, which compounds the effect of reduced airflow efficiency
- Being a large-breed dog, since this condition is more common in large and giant breeds generally
- Underlying neurological or hormonal conditions in some cases, including hypothyroidism
True BOAS does not occur in this breed. Laryngeal paralysis is a recognized, reasonably common condition in aging large-breed dogs generally, making it the far more realistic explanation for noisy senior breathing in an Old English Sheepdog.
Why this happens
Breed factors
This breed's normal, proportionate skull rules out true BOAS. Its status as a large breed does put it in the general category of dogs more commonly affected by age-related laryngeal paralysis, which is more frequently diagnosed in large and giant breeds than in small ones, and this breed's documented hypothyroidism risk is also worth noting, since hormonal dysfunction is sometimes associated with nerve function changes.
Environment factors
Heat and exertion don't cause laryngeal paralysis, but they significantly worsen its practical impact, since an already less-efficient airway has less margin for the added cooling demand that heat and exercise create.
What you can do at home (once it is not an emergency)
When to talk to your vet
Talk to your vet about a changed bark sound or breathing that's become noisier during exercise or excitement. Seek emergency care for breathing distress at rest, blue or gray gums, or collapse, especially in warm weather.
At home, alongside your vet's plan
- Pay attention to changes in bark sound as an early indicator worth mentioning to your vet.
- Limit exercise intensity during hot or humid weather more conservatively than you might for a younger, unaffected dog.
- Keep your dog at a healthy weight, since excess weight further reduces airflow efficiency.
- Provide a cool, well-ventilated space, especially during warm months.
- Track any changes in breathing sound or exercise tolerance over time to share with your vet.
Mistakes owners make with age-related breathing changes
Because this condition develops gradually in older dogs, it's easy to under- or over-react to it.
- Assuming louder breathing is 'just old age' without a vet exam: laryngeal paralysis is a specific, diagnosable condition, and confirming it changes how you manage exercise and heat exposure going forward.
- Continuing normal exercise intensity in heat once symptoms appear: dogs with laryngeal paralysis have reduced ability to move air efficiently, which makes them considerably more vulnerable to overheating than an unaffected dog.
- Ignoring a change in bark sound: a raspier or weaker bark is often one of the earliest signs, appearing before obvious breathing noise during exertion.
- Skipping a vet visit because the dog 'seems fine most of the time': mild, early-stage laryngeal paralysis often looks unremarkable at rest and only becomes obvious during exercise, excitement, or heat.
- Panicking and assuming surgery is the only option: many mild to moderate cases are managed successfully with lifestyle adjustments alone for a considerable time before, or without ever, needing surgery.
More OLD English Sheepdog health & behavior issues
- Old English Sheepdog IVDD: The Gradual Pattern This Breed Gets
- Old English Sheepdog Kidney Disease: Catching It Early
- Old English Sheepdog Pancreatitis & Diabetes: The Senior-Year Link
- Old English Sheepdog Pancreatitis: Recognizing an Acute Episode
- Preventive Gastropexy for Old English Sheepdogs: The Decision
- Eye Disorders in Old English Sheepdogs: The Full Picture
- Old English Sheepdog Allergic Reactions: Signs & Emergency Care
- Old English Sheepdog Allergies: Triggers, Ears & Skin
- Old English Sheepdog Obesity: Why Weight Creeps Up Unnoticed
- Old English Sheepdog Separation Anxiety: A Working-Breed Trait
- Old English Sheepdog Skin Allergies: Spotting Them Under the Coat
- Old English Sheepdog Skin Infections: The Moisture Problem
- Cancer in Old English Sheepdogs: Why Early Detection Is Harder
- Corneal Dystrophy in Old English Sheepdogs: Cornea vs Lens
- Cruciate Ligament Injuries in Old English Sheepdogs
Brachycephalic Obstructive Airway Syndrome Boas in other breeds
- Bichon Frise Breathing Noise: BOAS, Reverse Sneezing or What?
- BOAS and Akitas: Managing Heat and Exercise Instead
- BOAS and Weimaraners: A Flat-Faced Breed Condition
- BOAS in Australian Shepherds: Why It Doesn't Apply
- BOAS in Boston Terriers: Signs, Costs and What to Do
- BOAS in Brittany Spaniels: Signs, Costs and What to Do
- BOAS in German Shorthaired Pointers: Signs, Costs and What to Do
- BOAS in Newfoundlands: Signs, Costs and What to Do
- BOAS in Welsh Springer Spaniels: Why It Does Not Apply
- Brachycephalic Obstructive Airway Syndrome (BOAS) in Chinese Shar-Peis
See all OLD English Sheepdog health problems, which breeds are prone to brachycephalic obstructive airway syndrome boas, or the full OLD English Sheepdog breed guide for temperament, exercise needs and ownership costs.
What to expect, and how you know it is working
Laryngeal paralysis is typically a slowly progressive condition. Many dogs are managed successfully with lifestyle adjustments for months to years; if surgery becomes necessary, recovery typically takes several weeks.
Success looks like a dog that stays comfortable and safe during moderate activity and heat, with symptoms monitored and managed proactively rather than allowed to progress unaddressed.
The bark that changed before anything else did with Samson
Samson, a ten-year-old Old English Sheepdog, had always had a deep, booming bark. Over a few months, it became noticeably raspier, though his owner didn't think much of it until his breathing also sounded louder during an evening game of fetch. A vet exam under light sedation confirmed laryngeal paralysis. With exercise moved to cooler parts of the day and closely monitored, Samson continued his normal routine for over a year with the condition managed through lifestyle changes alone, no surgery needed.
Key takeaway: A changing bark can be the earliest, easiest-to-miss sign of this condition, well worth mentioning at a vet visit even before breathing itself sounds obviously different.
Frequently asked questions
Is BOAS a real risk for this breed as it ages?
No, true BOAS requires the flat-faced skull structure this breed doesn't have. What can develop in aging large dogs is a separate condition, laryngeal paralysis, which can sound similar but has a different cause and diagnosis.
What is laryngeal paralysis?
It's a condition where the nerves controlling the muscles that open the voice box (larynx) during breathing weaken or stop working properly, over time restricting airflow, especially during exertion or excitement. It's most common in older large-breed dogs.
What are the early signs?
A change in bark sound, becoming raspier or weaker, along with louder or harsher-sounding breathing during exercise or excitement, often before any obvious struggle is visible at rest.
How is it diagnosed?
Typically with a specific exam under light sedation that allows the vet to directly observe whether the voice box opens normally during breathing, since it can't be reliably assessed just by listening from outside.
Does it always require surgery?
No. Many mild to moderate cases are managed for a considerable time with lifestyle changes like heat avoidance and weight management. Surgery is generally reserved for more severe cases significantly affecting quality of life.
Why does heat matter so much with this condition?
The affected airway moves air less efficiently, which directly reduces a dog's ability to cool down through panting, making heatstroke a much higher risk for affected dogs than for unaffected ones of the same breed.
Is this the same as the tracheal collapse seen in small breeds?
No, that's a different structural condition affecting the windpipe, mostly in small breeds. Laryngeal paralysis affects the voice box specifically and is more typically seen in aging large-breed dogs like this one.
Quick answers
View more answersHealth
What's an early sign to watch for?
A raspier or weaker bark, often before noisy breathing during exercise becomes obvious.
Health
Does heat matter more with this condition?
Yes, affected dogs cool down less efficiently and are at higher risk of heatstroke, so heat management becomes more important.
Health
Is surgery always necessary?
No, many cases are managed with lifestyle adjustments for a considerable time before surgery, if it's ever needed, is considered.
Health
How is it actually diagnosed?
With a specific exam under light sedation to directly observe the voice box during breathing.
Related DogBreedCompass guides
- why Old English Sheepdogs aren't brachycephalic – Owners should understand this breed's real facial structure to rule out true brachycephalic anatomy.
- heat-related breathing distress in Old English Sheepdogs – Heat-driven breathing distress during exercise is a related but distinct concern at any age.
- exercise intolerance in Old English Sheepdogs – General exercise tolerance changes are relevant for senior dogs with this condition.
- Old English Sheepdog breed guide – The full breed guide covers what to expect as this breed ages.
- cost of owning an Old English Sheepdog – Diagnostic sedation and potential surgery are meaningful costs to plan for.
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