Breed Health Guide • Reviewed by Dr. Tiffany Delacruz, DVM
Brachycephalic Obstructive Airway Syndrome (BOAS) in Pugs
Also known as: BOAS
Pugs are among the most affected breeds for Brachycephalic Obstructive Airway Syndrome. The flat face, pinched nostrils, and elongated soft palate produce real airway compromise — even when the Pug seems happy and playful. Most owners learn to recognize the snoring and snorting as 'just being a Pug,' but it is clinically the sound of obstructed breathing.
Why Pugs are predisposed to brachycephalic obstructive airway syndrome (boas)
Pugs are extreme brachycephalic dogs. The Cambridge BOAS Research Group has identified Pugs as among the breeds with the highest BOAS scores. Most have stenotic nares (pinched nostrils), elongated soft palate, and a high rate of everted laryngeal saccules. They also have a notably high rate of hemivertebrae (spinal deformities) and corneal ulceration risk due to their exophthalmic eyes — but BOAS is the most life-quality-impacting issue.
What you'll see at home
- Loud snoring at rest
- Snorting and reverse sneezing episodes
- Heat intolerance — Pug families learn this fast
- Exercise intolerance, even on short walks
- Excessive panting at room temperature
- Sleeping in unusual positions to keep the airway open
- Cyanosis (blue gums) during a respiratory episode — emergency
- Heat stroke risk in moderate temperatures
Red flags — go to an emergency vet
- ⚠ Blue, purple, or gray gums
- ⚠ Collapse, especially heat-related
- ⚠ Open-mouth breathing with abdominal effort
- ⚠ Body temperature >104°F with respiratory distress
- ⚠ Severe corneal injury — proptosis (eye out of socket) is a true emergency in this breed
How vets diagnose brachycephalic obstructive airway syndrome (boas)
Clinical airway grading at rest and after mild exercise. Sedated laryngeal exam grades the soft palate and saccules. CT is the gold standard for surgical planning. Owners are often surprised by how compromised their Pug's airway is on objective grading.
Treatment options
BOAS surgery (nostril widening, soft palate shortening, saccule resection) is highly effective. Lifestyle is the daily foundation: cool environment, harness, weight control, controlled exercise. Most Pug families benefit from a harness, AC year-round in warm climates, and elevated feeding for the reflux many Pugs develop.
Living with a Pug who has brachycephalic obstructive airway syndrome (boas)
- 1 AC year-round in any warm climate — heat stroke risk is real
- 2 Harness, never a collar
- 3 Lean weight is critical — obese Pugs struggle dramatically more
- 4 Eye care: short faces + bulging eyes = high corneal ulcer risk; address eye discharge promptly
- 5 Brachycephalic-aware anesthesia for any procedure
- 6 Avoid airline travel — many airlines now ban brachycephalic breeds
- 7 Discuss BOAS surgery early if your Pug has any signs of breathing difficulty
Can RexVet help with this online?
RexVet is well-suited for: BOAS triage and surgical referral guidance, harness fit coaching, weight loss plans, heat management strategies, and the chronic respiratory and eye care these dogs need.
Start a $64.99 video visit →We cannot perform laryngeal exams, eye exams with fluorescein staining, or surgery by video. Acute breathing distress or any eye injury (squinting, discharge, cloudiness) warrants in-person evaluation.
Prognosis — what to expect
Surgically corrected Pugs do markedly better. Lifestyle management alone can sustain quality of life for mildly affected Pugs but most benefit from surgery. Heat-related deaths in Pugs are entirely preventable with vigilance.
Frequently asked questions
Frequently asked questions
Why does my Pug snore so loudly?
Because the airway is obstructed. The flat face and elongated soft palate create the loud snoring sound. It's species-typical but not biologically normal — and the loud snoring at rest signals significant airway compromise that warrants a BOAS workup.
Is BOAS surgery safe for Pugs?
Yes, with brachycephalic-aware anesthesia and an experienced surgeon. The procedure carries real anesthesia risk but the outcome data is strong — most operated Pugs do dramatically better. The risk of leaving severe BOAS untreated is also real (heat stroke, progressive airway damage, reduced lifespan).
How do I keep my Pug safe in summer?
AC at home is a medical necessity. Walk only in the coolest part of the day. Never leave a Pug in a car, ever. Watch for excessive panting and bring them inside the moment they show heat distress. Cooling vests can help during unavoidable outdoor time.
Other conditions common in Pugs
Further reading from the RexVet blog
Other helpful RexVet resources for Pugs parents
Sources
Last fact-checked: 2026-06-04. Reviewed by Dr. Tiffany Delacruz, DVM.
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