Mary Allen
A complex interaction of both genetic factors and environmental influences in the form of e.g. B. suspected chemicals, radiation, or viruses.
Certain chemicals can also promote the formation of tumors in animals. Cigarette smoke, exhaust fumes, and various insecticides and pesticides are known for their carcinogenic effects.
For example, cats that have white fur and skin on their ears, eyelids, and nose are very likely to develop squamous cell carcinoma there. Repeated sunburns and UV radiation are suspected to be triggers.
One of the well-known viruses that cause cancer is the feline leukosis virus (FeLV). Cats with FeLV infection often develop malignant lymphoma. (Read more about FeLV and lymphoma here). A genetically determined increased susceptibility to certain types of tumors can be found in some breeds. For example, very large dog breeds are more likely to develop bone tissue tumors than small breeds.
A major risk factor for cancer in both animals and humans is age. The likelihood of developing cancer increases with age. Since pets are getting older due to their good care, more and more animals are getting sick.