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Stenotic Nares Surgery for Flat-Faced Dogs and Cats

Flat-faced breeds are full of personality, but many are born with narrow nostrils that make every breath harder work. Surgery to widen the nostrils is a simple procedure that can make a real difference to your pet's breathing, energy and comfort. Here's what it involves.

Veterinarian examining a French Bulldog at Thedford Veterinary Hospital
What it treats
Narrowed nostrils (stenotic nares) in flat-faced breeds
Recovery time
10–14 days
Best suited for
Bulldogs, French Bulldogs, Pugs, Boston Terriers, Shih Tzus and flat-faced cats such as Persians

Signs your pet may be struggling to breathe

Many owners assume noisy breathing is just "normal for the breed", but it's often a sign the airway is too narrow. Watch for:

Noticing any of these signs?

Breathing problems in flat-faced breeds tend to get worse over time, and earlier treatment gives better results. Book an exam and we'll take it from there. If your pet's gums look blue or grey, or they collapse, call us immediately.

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What stenotic nares surgery involves

Narrow nostrils are one part of brachycephalic obstructive airway syndrome (BOAS), a group of airway problems common in flat-faced breeds. Others include small pouches in the voice box that get pulled into the airway, and a narrow windpipe. Nostril surgery removes a small wedge of tissue from each nostril to open the airway.

Flat-faced breeds need extra care under anesthesia, so we plan carefully. We monitor them closely as they wake and keep the breathing tube in place until they're fully alert. For young dogs, the surgery can often be done alongside a spay or neuter.

Recovery, phase by phase

Day 1

Close monitoring as your pet wakes up. Most go home the same day.

Week 1

Some crusting and occasional spots of blood around the nostrils are normal. A cone stops your pet from rubbing their nose. Keep them calm, cool and indoors in warm weather.

Week 2

Recheck, and removal of any stitches that aren't dissolvable. The nostrils should be healing well by this stage.

Week 3+

Most owners notice quieter breathing, better sleep and more energy on walks. Continue good everyday habits (see below) to protect your pet's airway long term.

A closer look at BOAS and breathing

Everything above covers what most owners need. If you'd like to understand why these airway problems develop and how to support your pet long term, this section walks through it.

Why earlier surgery helps

When a pet has to pull hard to get air through a narrow airway, that effort gradually sucks soft tissue further into the throat and voice box, causing more blockage over time. Opening the nostrils early reduces that strain and can slow or prevent these secondary changes. Many vets recommend assessing flat-faced puppies before or at the time of their spay or neuter.

Heat is a real danger

Dogs cool themselves mainly by panting, and flat-faced breeds can't pant efficiently. That makes them far more prone to heatstroke. Even after surgery, keep walks to cooler parts of the day, provide shade and water, and never leave them in a car.

Why anesthesia needs extra care

Flat-faced pets are more likely to have breathing difficulty while waking from anesthesia, and more likely to regurgitate. Our plan covers this with careful monitoring, medications to reduce regurgitation, and keeping the airway protected until they're fully awake.

Possible complications, and how we manage them

Nostril surgery itself rarely causes problems beyond minor scabbing. Regurgitation can lead to aspiration pneumonia in some dogs. That's why we monitor closely afterwards and ask you to call if you notice coughing, laboured breathing or lethargy.

Everyday habits that help

Use a harness instead of a collar to avoid pressure on the throat. Keep your pet lean, because extra weight around the neck and chest makes breathing harder. Avoid heat and humidity, and give plenty of rest on walks.

Want to know what's right for your pet?

Every flat-faced pet is a little different. Book an exam and we'll assess your pet's airway and walk you through the options.

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Common questions

Will my dog stop snoring?

Most dogs breathe much more quietly after surgery, though some snoring may remain because the airway is still shaped differently from a long-nosed dog's.

Can it be done with a spay or neuter?

Yes. Combining them means only one anesthetic, and it's a good time to assess the airway before problems progress.

Does surgery cure BOAS?

It significantly improves breathing but doesn't change your pet's overall facial structure. Good everyday habits remain important for life.

How much does it cost?

We'll give you a clear, itemized estimate first.

Not sure if your pet's breathing is normal?

Give us a call. We're happy to talk through what you're seeing and whether surgery could help.

Call (226) 402-0183