5 Dog Breeds That Carry the Most Built-In Health Problems

Everyone has seen the video of the Bulldog puppy, ears perked up, snoring like a grown adult — and melted. It is hard not to fall for a breed's face. The problem is that, in at least five very popular breeds, that same charming face is also the source of the health problem. It is not neglect by the owner: it is the breed's conformation — the way the body was shaped over generations — that pushes the dog into a predictable disease.

Why can the face you love be the disease?

The clearest case is the Bulldog, French and English. The flat muzzle that gives the breed its charm reduces airway space, and the resulting set of breathing problems even has a technical name: brachycephalic syndrome. In practice, that means constant snoring, difficulty regulating temperature in heat and, in a good share of cases, surgery to open the airway. According to VCA Hospitals, the problem originates in the structure of the skull, not in something that happened later — it is factory-installed.

3 physical traits worth attention before choosing a breed

• A very flat muzzle (Bulldog, Pug): less room to breathe and more exposed eyes — the Pug in particular suffers from corneal ulcers easily, because the eyeball sits more prominently and is vulnerable to a scratch or a poke from another animal.
• A very long spine (Dachshund, the "sausage dog"): the same proportion that makes the breed instantly recognizable is a risk factor for disc herniation — IVDD, when a spinal disc slips out of place and can compromise movement of the legs.
• Excess skin with deep folds (Shar-Pei): the folds that look like a trademark turn into pockets of moisture and friction, and the breed develops chronic dermatitis almost weekly — on top of familial Shar-Pei fever, a recurring inflammation that requires constant monitoring.

The 5 breeds and the disease each one carries

Breed	Physical trait	Associated disease
Bulldog (French and English)	Flat muzzle	Brachycephalic syndrome
Pug	Flat muzzle, more prominent eyes	Corneal ulcer
Dachshund ("sausage dog")	Very long spine	Disc herniation (IVDD)
Shar-Pei	Deep skin folds	Chronic dermatitis and familial Shar-Pei fever
Cavalier King Charles	Skull too small for the brain	Syringomyelia and mitral valve disease

Good food and good care do not erase a structural problem

This is the point that confuses first-time owners the most: you can minimize the impact with good habits, but you cannot "cure" a problem built into the dog's structure. The Cavalier King Charles is the most direct example. The breed's skull grows too small for the brain, which causes syringomyelia — pain that appears out of nowhere, with no trauma behind it. Next usually comes mitral valve disease, a heart problem that shows up early and requires lifelong monitoring. According to VCA Hospitals, mitral valve disease is hereditary and progressive — it is not prevented with better food, only monitored.

None of this is a reason not to love these breeds — they remain among the most affectionate companions there are. It is a reason to choose with your eyes open: look for a breeder who health-tests the parents, ask your veterinarian about the line's history, and schedule more frequent checkups from puppyhood, not only when a symptom appears.

Breed by breed: physical trait and associated disease

Breed	Physical trait	Associated disease or condition
Bulldog (French and English)	Flat muzzle	Brachycephalic syndrome
Pug	Flat muzzle, more prominent eyes	Corneal ulcer
Dachshund (sausage dog)	Very long spine	Disc herniation (IVDD)
Shar-Pei	Deep skin folds	Chronic dermatitis and familial Shar-Pei fever
Cavalier King Charles	Skull too small for the brain size	Syringomyelia and mitral valve disease

What NOT to do

• Do not choose a breed from a cute photo or video without first asking a veterinarian which health problems are predictable in that specific breed.
• Do not wait for symptoms before looking for a breeder who health-tests the parents — once the puppy is born, it is too late to change its genetics.
• Do not treat sudden signs of pain (crying for no reason, a changed gait) as drama — in breeds with known structural risk, that is a reason for a consultation.

Frequently asked questions

Will a French Bulldog always need surgery to breathe?

Not always, but the risk is real: the flatter the muzzle, the higher the chance the airway is narrow enough to require surgical correction at some point in life.

Can a Dachshund's disc herniation be prevented?

The risk can be reduced — avoiding stairs, jumps off couches and beds, and excess weight — but it cannot be eliminated, because the long spine is the breed's conformation itself.

Is syringomyelia in Cavaliers curable?

There is no cure, only control: treatment focuses on relieving pain and, in more severe cases, surgery to reduce pressure in the area. That is why regular veterinary follow-up matters from puppyhood.

Does every Shar-Pei get familial fever?

Not every one, but the predisposition belongs to the breed — which is why a Shar-Pei with recurring episodes of fever and joint swelling should be evaluated, not just medicated to bring the fever down.

If you already share your home with one of these breeds — or are thinking about adopting one — build your pet's profile and see what to prioritize in its routine →