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Cancer in dogs v cancer in humans

Cancer in Dogs vs Cancer in Humans


What is the incidence of cancer in dogs as compared to cancers in human beings?

Cancer incidence is low as compared with humans. Even when there exists a lipoma, a benign fatty tumour, or breast tumours that are diagnosed as malignant, these do not precipitate a spreading malignancy or death.

Cancer in dogs v cancer in humans

Occasionally dogs will have a liver or spleen tumor that spreads to the lungs. Such dogs can bleed to death because the tumors bleed, or the malignancy can cause sufficient damage to the liver to cause death.

Fibrosis of the heart and kidneys, which means a loss of elasticity in those organs, is far and away the most common disease-induced cause of death. Cancer affects more cats than dogs, but the reasons for this are somewhat obscure. Much can be done to control and prevent cancer in dogs.

If you are worried about the possibility of your dog contracting cancer or want to learn more about how to spot the signs of cancer in your dog, take a look at or get in touch with our friends at

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