Why Breeding Healthier French Bulldogs Matters — and What It Actually Means

Sarah
Feb 13
4 min read

Over the past few years, I’ve noticed more conversations around breeding healthier French Bulldogs — and as someone who lives and works closely with this breed, that shift feels hopeful.

French Bulldogs are deeply loved companions, but they also face well-known health challenges linked to generations of selective breeding for certain physical traits. As our understanding of canine genetics grows, we’re learning more about how early breeding decisions influence not only physical health, but behaviour, comfort, and quality of life for years to come.

This isn’t about blame or judgement. It’s about understanding what we now know — and how that knowledge helps us make more thoughtful choices for the future of the breed.

Understanding the Genetics Behind the Conversation

French Bulldogs are predisposed to certain inherited conditions because of the way the breed has been shaped over time.

One of the genes receiving increasing attention is the DVL2 gene, which plays a role in the WNT signaling pathway — an important process involved in spinal and vertebral development. Variants in this gene are associated with the shortened, screw-tail appearance common in French Bulldogs and related breeds.

While that appearance has become a defining feature of the breed, research has shown that these same genetic changes can also be linked to:

vertebral malformations
spinal irregularities
increased risk of discomfort or neurological issues
and broader structural challenges that can affect movement and breathing.

This is one reason conditions like Brachycephalic Obstructive Airway Syndrome (BOAS) and spinal abnormalities (hemivertebrae and IVDD) are seen more frequently in French Bulldogs than in many other breeds.

Another area receiving attention is the CDDY gene, which has been associated with certain musculoskeletal conditions such as early calcification of spinal discs leading to IVVD and herniation (spinal nerve entrapment, where the intervertebral disc ruptures, leading to painful nerve damage and potential paralysis). The CDDY gene is a dominant gene, meaning even 1 copy in a dog can result in that dog showing symptoms, or suffering from damage or rupture. Emerging research suggests that avoiding the pairing of dogs carrying harmful copies of these genetic variants may help reduce inherited risks in future generations.

So removing these genes in French Bulldogs is an essential consideration for breeders.

Health Impacts Beyond Appearance

When we talk about conformation, it’s easy to focus on aesthetics — but structure directly affects function.

Studies examining French Bulldogs have found a high incidence of congenital vertebral changes, particularly in screw-tailed dogs. These changes can sometimes contribute to pain, reduced mobility, or long-term health complications like early onset Intervertebral Disc Degeneration that impact wellbeing and lifespan.

In simple terms: genetics matter, and healthier breeding choices can reduce the likelihood of chronic issues later in life.

What Does “Health-Focused Breeding” Actually Mean?

Health-focused breeding does not mean abandoning the breed we love. It means prioritising function and wellbeing alongside type.

Increasingly, responsible breeders are focusing on:

structural health and movement
respiratory function
spinal health
temperament and resilience
thoughtful genetic testing and selection

You may hear the terms “one or zero-copy dogs”, referring to dogs that carry a single copy or no copies of one or both of the genes (DVL2 or CDDY). Breeding decisions that consider these factors aim to reduce inherited risk while preserving the breed’s positive characteristics.

Why This Matters for Everyday Owners

The impact of breeding decisions shows up in everyday life:

easier breathing and exercise tolerance
improved comfort and mobility
reduced risk of chronic pain
better emotional wellbeing and learning capacity

As a trainer, I regularly see how physical health influences behaviour. Dogs who feel comfortable in their bodies often find it easier to learn, regulate emotions, and build confidence.

My own journey with Aspen reinforced this for me. Watching her health improve over time highlighted just how interconnected physical wellbeing, behaviour, and quality of life really are.

Where to Start if You’re Looking for a Puppy

If you’re beginning your search for a French Bulldog, there are organisations and directories that prioritise responsible breeding practices and can help guide your research.

Some helpful starting points include:

Breed clubs and organisations with ethical breeding codes
Registered breeder directories that emphasise health testing and transparency
Conversations with breeders about structure, breathing, temperament, and long-term health goals.

The goal isn’t perfection — it’s informed, thoughtful decision-making.

A Shift Toward Healthier Futures

The encouraging part of this conversation is that change is already happening. More breeders and owners are asking deeper questions about health, genetics, and welfare, and that shift has the potential to improve the future of French Bulldogs significantly.

Healthier breeding practices don’t just change individual dogs — they shape generations.

A Gentle Reminder

No breeder, owner or dog is perfect. We all learn as new science emerges. What matters most is a willingness to keep learning and to prioritise wellbeing over aesthetics whenever possible.

Final Thoughts

At the heart of everything I do is the belief that confidence grows through connection — between dogs and their people, between knowledge and compassion, and between thoughtful choices made early and the lives we build together later. Whether you’re raising a new puppy or supporting an adult dog, small informed decisions can create lasting change.