Understanding BOAS in Dogs for Local Owners

If your dog is noisy when breathing, struggles in warm weather, or seems to tire more quickly than other dogs, you may have heard the term BOAS mentioned. BOAS stands for Brachycephalic Obstructive Airway Syndrome. It is a condition that affects breathing, most commonly in flat-faced breeds such as Bulldogs, French Bulldogs, Pugs, Boston Terriers and Shih Tzus.

At Barton Veterinary Practice, we know that hearing your dog may have a breathing problem can feel worrying. The good news is that with the right advice, early assessment, and ongoing support, many dogs with BOAS can be managed well and enjoy a good quality of life. For dogs who may need further assessment, we also offer a dedicated BOAS grading clinic.

This article is intended for general guidance only. If your pet is unwell or showing concerning symptoms, please contact your vet for professional advice.

What is BOAS?

BOAS is a breathing condition seen in brachycephalic dogs. “Brachycephalic” simply means short-headed or flat-faced. These breeds are often loved for their appearance and personality, but the shape of their head, nose and throat can sometimes make normal breathing more difficult.

Dogs with BOAS may have narrower nostrils, a longer or thicker soft palate at the back of the mouth, and changes within the throat that reduce airflow. This means they may need to work much harder to breathe, especially during exercise, excitement or hot weather.

Not every flat-faced dog is affected in the same way. Some have only mild signs, while others may be significantly affected. This is why early recognition and a proper assessment are so important.

Which dogs are most commonly affected?

BOAS is most often seen in flat-faced breeds, including:

• French Bulldogs
• Pugs
• English Bulldogs
• Boston Terriers
• Shih Tzus
• Pekingese
• Boxers, in some cases

Here in Barton, Barrow, Goxhill, New Holland, Wootton and across North Lincolnshire, we regularly speak to owners of these popular breeds who want to better understand their dog’s breathing. Even if your dog has always sounded “snuffly” or “snory”, it is worth remembering that noisy breathing is not always normal.

Common signs of BOAS in dogs

One of the challenges with BOAS is that some signs can be mistaken for just being typical of the breed. In reality, they may indicate that your dog is struggling to get enough air.

Symptoms to watch for

• Noisy breathing, especially when awake
• Snorting, snoring or rasping sounds
• Tiring quickly on walks
• Difficulty exercising or reluctance to play
• Breathing with the mouth open more than expected
• Gagging or retching
• Restlessness or distress in hot weather
• Struggling to recover after exercise
• Sleep disturbance or awkward sleeping positions
• Episodes of collapse or blue-tinged gums in severe cases

If your dog shows any of these signs, it is worth arranging a check with your vet. You can book an appointment through our online booking page or learn more about our health checks and clinics.

Why BOAS matters

Breathing problems can affect far more than exercise. Dogs use breathing to help regulate their body temperature, so dogs with BOAS can be at greater risk of overheating. This is one reason warm weather can be especially difficult for affected pets.

BOAS may also impact sleep, energy levels, enjoyment of walks, and general day-to-day comfort. In more serious cases, repeated airway strain can worsen the condition over time.

Recognising BOAS early gives us the best chance to help. In some dogs, careful monitoring and lifestyle changes are enough. In others, further investigation or treatment may be recommended.

When should you see a vet?

We would advise arranging a veterinary check if your dog:

• Breathes noisily on a regular basis
• Struggles with exercise compared with similar dogs
• Pants excessively in mild weather
• Seems distressed when excited or active
• Has had any collapse, fainting or severe breathing episode

If your dog is in obvious respiratory distress, breathing very rapidly, collapsing, or showing blue or pale gums, this should be treated as urgent and you should contact a vet immediately.

At Barton Vets, we can assess your dog’s breathing and discuss whether a referral-style assessment or formal grading would be helpful through our BOAS grading clinic.

What happens at a BOAS assessment?

A BOAS assessment looks at how your dog breathes and how much their airway may be affected. This may include a discussion about symptoms at home, your dog’s exercise tolerance, and any problems in heat or after activity.

During a consultation, we may check:

• Nostril shape and airflow
• Breathing noise and effort
• Body condition and weight
• Exercise tolerance
• Whether further airway examination is needed

In some cases, more in-depth assessment is required to understand what is happening inside the airway. If treatment is needed, we can guide you through the options and explain what is most suitable for your dog.

Can BOAS be treated?

Treatment depends on how severely your dog is affected. Mild cases may benefit from careful weight management, avoiding overheating, and adjusting exercise. More severely affected dogs may need surgery to help improve airflow.

Supportive management at home

• Keep your dog slim, as extra weight can worsen breathing
• Walk during cooler parts of the day
• Avoid overexertion, especially in summer
• Use a harness rather than a collar if advised
• Provide cool, well-ventilated resting areas
• Monitor for any change in breathing noise or stamina

Preventative care and regular checks can make a real difference. Our preventative healthcare services and pet health plans can help owners stay on top of their dog’s ongoing care.

When surgery may be considered

Some dogs benefit from procedures to widen the nostrils or shorten excess tissue at the back of the mouth. Surgery is not necessary for every dog, but for the right patient it can improve comfort, reduce breathing effort and help with exercise tolerance.

If advanced treatment is being considered, you can also read more about our advanced surgery and medicine services.

How owners can help prevent problems becoming worse

While BOAS is linked to head shape, there is still a lot owners can do to reduce the strain on their dog’s airway and spot concerns early.

• Attend regular check-ups
• Keep your dog at a healthy weight
• Do not ignore noisy breathing as “normal for the breed”
• Take extra care in warm weather and during travel
• Seek advice early if symptoms change

If you have recently welcomed a flat-faced puppy into the family, early guidance is especially valuable. Barton Vets offers free puppy and kitten health checks for eligible pets, and you can also register your pet with us online.

Living locally with a dog affected by BOAS

For owners in Barton and the surrounding villages, practical day-to-day planning can really help. Shorter walks in the early morning or evening, avoiding busy hot pavements, and watching carefully during play can all reduce the risk of breathing flare-ups.

Many owners tell us they were unsure whether their dog’s sounds and snuffles were truly a problem. If that sounds familiar, you are not alone. Asking the question early is always worthwhile, and we are happy to help you understand what is normal and what may need attention.

How Barton Vets can help

At Barton Veterinary Practice, we are committed to giving clear, practical advice for local pet owners. If you are concerned about your dog’s breathing, we can assess their symptoms, discuss the next steps, and advise whether our BOAS grading clinic would be appropriate.

Whether you are based in Barton upon Humber, Barrow, Goxhill, New Holland, Wootton or elsewhere in North Lincolnshire, our team is here to support you with friendly, professional care. You can find out more about us, see our services, or find us easily online.

Contact us for advice

If your dog has noisy breathing, struggles in the heat, or seems less able to exercise comfortably, please do not wait for symptoms to become more severe. Early advice can make a real difference.

To arrange an appointment, please use our online booking page or visit the Barton Veterinary Practice homepage to learn more about how we can help.

At Barton Vets, we are always happy to support local owners with straightforward advice and compassionate care for every stage of their dog’s life.