From Dogs, Answers About Breast Cancer - The New York Times - breast dog tumor

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Mammary (Breast) Tumors in Dogs - Dog Owners - Veterinary Manual breast dog tumor


Spaying can largely reduce a dog's risk of developing breast cancer, especially if the dog is spayed before she has an opportunity to go into.

Mammary tumors in dogs are not very common in North America due to routine as a result of abnormal replication of the cells that make up the breast tissue.

Mammary (or breast) tumors are common in female dogs, but rare in male dogs and cats. Surgical removal is recommended for most mammary tumors.