Mammary tumors have multiple causes, the most important of which is hormonal. Exposure to estrogen and progesterone, whether from the dog’s ovaries during each heat cycle or through medications ...

For dogs with mammary tumors, deciding a course of treatment can depend on a variety of factors, some of which may seem to contradict one another. With a new, practical system developed by ...

Mammary tumors in dogs are a pretty common occurrence. One in four unspayed female dogs will have mammary tumor development. The best treatment of mammary tumors is prevention.

Treatment: Fortunately, when female dogs are spayed before their first heat, they only have a 0.5% risk of developing a mammary tumor. After that, however, the risk increases.

As a dog owner, if you notice a lump on your female dog’s mammary gland, caution is advised. It could be a mammary tumor, which can be either benign or malignant. Early detection and treatment are, ...

Dogs that are spayed at a young age have a reduced risk of developing mammary tumors, the canine equivalent of breast cancer. Early spaying reduces levels of estrogen production, leading many ...

Mammary tumors in dogs are the equivalent of breast cancers in people, and, as in the human disease, the canine tumors can manifest in a variety of ways. Some are diagnosed early, others late, and ...

For dogs with mammary tumors, deciding a course of treatment can depend on a variety of factors, some of which may seem to contradict one another. With a new, practical system developed by ...

Mammary tumors develop between the ages of 7 and 13. About 70% of dogs have multiple mammary tumors at the time of diagnosis. The mammary glands closest to the hind legs are most often affected.