Dog breeds and their estimated cancer risks based on veterinary studies and breed health data. Keep in mind these are averages, not guarantees — genetics, environment, and lifestyle all play a role.
📊 Dog Breeds with Higher Cancer Risk
- Golden Retriever – Up to 60% develop cancer in their lifetime (especially lymphoma & hemangiosarcoma).
- Boxer – Around 40–50%, often mast cell tumors and brain tumors.
- Bernese Mountain Dog – 45–50%, especially histiocytic sarcoma.
- Rottweiler – Around 40%, with bone cancer (osteosarcoma) being common.
- German Shepherd – About 25–30%, with hemangiosarcoma and lymphoma more common.
- Scottish Terrier – Higher risk for bladder cancer.
- Irish Wolfhound & Great Dane – Higher risk of bone cancer due to size.
📊 Moderate Risk Breeds
- Labrador Retriever – About 20–25%, often lymphoma.
- Beagle – Around 23%, higher risk of bladder cancer.
- Cocker Spaniel – Around 20–25%, common cancers include mammary tumors.
- Bulldog – About 20%, skin cancers are more frequent.
📊 Lower Risk Breeds
- Miniature Schnauzer – Around 10–15%.
- Dachshund – Around 10–12%, more prone to back issues than cancer.
- Chihuahua – Around 7–10%, one of the lowest rates.
- Poodle (Toy/Miniature) – About 8–12%.
✅ Big picture:
- Large breeds tend to have a higher risk of cancer, especially bone cancer.
- Smaller breeds tend to have a lower risk, but may face other chronic conditions instead.
- Mixed breeds often fall somewhere in the middle, with slightly reduced risk compared to high-risk purebreds.