1. Golden Retriever

Sorry if this makes you feel sad, but unfortunately, the Golden Retriever is the dog breed that is at the highest risk of developing this nasty disease. According to a 1988 study, nearly 70% of male Goldens and 60% of female Goldens will receive a cancer diagnosis eventually. When compared to other dog breeds, the cancer rate is more than twice as high.

Although every type of cancer has been found in the breed, the most common ones are hemangiosarcoma cancer and lymphoma cancer. One in five Goldens is diagnosed with hemangiosarcoma, and one in eight is diagnosed with lymphoma.

The study mentioned above also discovered that cancer is more likely to develop in American Golden Retrievers compared to European Golden Retrievers.