Medically reviewed by Katlein Franca, MD Skin cancer is a type of cancer that begins in the skin cells, and its appearance can vary widely depending on the type of cancer. Understanding the variations ...

Tumors, growths, and cysts are common in dogs, particularly in older ones, and should be promptly evaluated by a veterinarian if persistent. Different types of growths, such as se ...

But you should know that skin tumors, which may be cancerous, are the most common tumors found in dogs. Fortunately, when caught early, many cases of dog skin cancer can be treated successfully.

Fortunately, when caught early, many cases of dog skin cancer can be treated successfully. Not all varieties of dog skin cancer are caused by sun exposure, but sun damage to the skin can be a factor.

Recognizing early stage skin cancer can drastically improve the outlook. Lesions can vary in appearance, but standard features include irregular skin changes and wounds that do not heal.