The Most Unhealthy Dog Breeds: Common Health Issues by Breed
Many beloved dog breeds face a higher risk of health problems because of selective breeding. While every dog can thrive with attentive care, some breeds are genetically predisposed to serious or chronic conditions. Let's explore which breeds tend to struggle most and what specific issues they encounter.
Brachycephalic Breeds: Breathing and More
English Bulldogs top the list for health concerns. Their flat faces cause brachycephalic obstructive airway syndrome—making it hard to breathe, especially in heat or during exercise. Their skin folds trap moisture (hello infections), joints often ache from hip dysplasia, and they're prone to obesity, cherry eye, and heart disease. Most can't breed or give birth naturally; cesarean sections are common due to large puppy heads. Lifespan usually falls between 8 and 10 years.
French Bulldogs share many of these woes: breathing difficulties, skin fold infections, allergies, and spinal disorders like intervertebral disc disease. Their exposed eyes mean more injuries and conditions like cherry eye. Obesity is a risk too—owners must clean skin folds regularly and avoid overheating their pups.
Pugs struggle with noisy breathing and snoring thanks to brachycephalic airway syndrome. They overheat easily and can develop eye problems (proptosis, corneal ulcers), skin allergies, joint disorders such as hip dysplasia, obesity, and even neurological issues like Pug dog encephalitis. These compact dogs need regular checkups.
Large Breeds: Joints and Lifespan Challenges
German Shepherds frequently deal with joint issues including hip/elbow dysplasia and degenerative myelopathy (a neurological disorder). They're also at risk for allergies, exocrine pancreatic insufficiency, epilepsy, heart disease (like dilated cardiomyopathy), bloat (a life-threatening stomach twist), and cancer. Keeping them fit helps but doesn't erase genetic risks.
Great Danes, gentle giants with short lives (often 8–10 years), face bloat (gastric dilatation-volvulus), dilated cardiomyopathy, bone cancer (osteosarcoma), hypertrophic osteodystrophy in young dogs, arthritis, hip dysplasia, heart issues, and thyroid problems. Their size stresses joints; deep chests increase bloat risk—feeding small meals helps.
Bernese Mountain Dogs have one of the shortest lifespans among large breeds (7–10 years). They're susceptible to cancers like histiocytic sarcoma, plus hip dysplasia, bloat, thyroid disease, joint issues, cataracts, and allergies.
Cancer-Prone Breeds
Boxers face high rates of lymphoma and mast cell tumors. Heart conditions (boxer cardiomyopathy/aortic stenosis), hip dysplasia, epilepsy, hypothyroidism, and allergy-driven skin issues are common too. These energetic dogs need daily activity but also frequent vet visits.
Rottweilers, powerful but vulnerable to joint conditions (hip/elbow dysplasia), osteochondritis dissecans, osteosarcoma (bone cancer), obesity-related diseases, heart problems (subaortic stenosis), epilepsy, and skin allergies. They typically live 8–10 years.
Toy & Companion Breeds: Heart & Neurological Risks
Cavalier King Charles Spaniels almost always develop mitral valve disease by age 7—a degenerative heart condition. Syringomyelia (fluid-filled cavities in the spinal cord) is seen too. They're also prone to patellar luxation (knee cap slips), hip dysplasia, retinal disorders/cataracts in the eyes—and ear infections due to floppy ears.
Dachshunds, with their long backs/short legs combo—are at high risk for intervertebral disc disease causing pain/mobility loss. Patellar luxation is common along with obesity risks; they might also suffer from progressive retinal atrophy in the eyes or dental problems.
Other Notably Unhealthy Breeds
- Cocker Spaniels: Prone to ear infections (floppy ears!), hip dysplasia, skin allergies/conditions like progressive retinal atrophy/glaucoma/cataracts/heart disease.
- Shar-Peis: Wrinkled skin leads to infections/diseases like entropion; also face Shar Pei fever/hip dysplasia/hypothyroidism/bloat/joint issues.
- Doberman Pinschers: Dilated cardiomyopathy/von Willebrand disease/hip dysplasia/kidney/hypothyroidism/arthritis/cancer/bloat.
- Mastiffs: Entropion/arthritis/bloat/epilepsy/hip-elbow dysplasia/skin infections/cancers/tumors—shorter life expectancy linked to size.
- Labrador Retrievers: Generally healthy but can develop obesity/joint problems/heart disease/arthritis as they age; weight management is key.
- Bichon Frises & Miniature Schnauzers: Higher risks for pancreatitis/diabetes/kidney stones/disease/luxating patellas/allergies/cataracts—especially as seniors.
- Poodles: Addison’s/Cushing’s diseases/epilepsy/joint/cardiac issues more likely in older/larger individuals.
- Yorkshire Terriers & Chihuahuas: Kidney/tracheal collapse/luxating patella/liver disorders/dental disease—small mouths mean dental care is vital; Chihuahuas live long but need monitoring for heart/dental/tracheal issues.
Caring for At-Risk Breeds
If you're drawn to one of these breeds—or already have one—don't panic! Regular veterinary checkups matter enormously. Keep your pet active but not overworked; manage weight carefully; maintain dental hygiene; groom as needed; screen early for breed-specific diseases when possible. Responsible breeders who screen for inherited conditions help reduce severe health risks in future generations.
No matter the breed's odds on paper—attentive owners make a huge difference in quality of life for their dogs facing extra challenges.





