BOAS surgery recovery: the critical first days

EMReviewed by Eben Martin, Veterinary Surgeon · Updated August 2026

BOAS recovery is short but front loaded: the first 24 to 48 hours, while swelling peaks in the operated airway, are the critical window and the reason overnight monitored care matters. After that, expect a week or two of soft food and calm, with the breathing improvement often obvious within days.

StageWhat is happeningWhat you do
First 24 to 48 hoursSwelling peaksMonitored care; this is what the overnight fee buys
Days 2 to 7SettlingHome, calm household, soft food, harness only, no heat or excitement
Weeks 1 to 2Throat healingSoft food continues; coughing or gagging settles progressively
Week 2 onwardThe revealQuieter breathing, better sleep and more stamina become obvious

Small print that matters

Use a harness, never a collar, from now on, not just during recovery. Feed soft food in small portions; some gagging or a soft cough early is common as the palate site heals. Keep the house cool and boring for a fortnight. And know the escalation signs cold: loud worsening breathing, blue or grey gums, or distress at rest mean straight back to the hospital, immediately.

Regurgitation that persists or worsens after recovery deserves review rather than tolerance: reflux and airway disease feed each other in these breeds, and both are treatable.

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Common questions

How soon will I see the difference?

Many owners report calmer, quieter breathing within days of the swelling settling, and the full result by a few weeks. The commonest owner report at the recheck is that the dog acts years younger.

Can my dog fly or board after BOAS surgery?

Flying is a genuine risk conversation for brachycephalics regardless of surgery, and airlines increasingly restrict the breeds. Post surgery dogs handle stress and heat better, but cargo holds and kennel excitement remain higher risk settings; plan around them where you can.

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