Common Pet Cancer Seen in Dogs

Unlike many other animal species, dogs are susceptible to the same forms of cancer as people. The uncontrolled development of cells in the body causes cancer. These cells might come from any part of the body. 

A veterinarian can only diagnose canine cancer. This is why it’s critical to check your canine companion’s health regularly. Your veterinarian can look for symptoms of canine cancer during these preventative checkups.

Cancer may extend and interact with the circulatory and lymphatic systems and spread and infect other tissues in the body if it is not detected and treated early. The key to a successful recovery is to treat canine cancer early on. If you believe your dog has cancer, whether you locate a lump or notice behavioral problems, please book an appointment with a veterinarian.

Cancer in Dogs

Cancer is the most significant cause of mortality in dogs over the age of ten years. Half of all cancers in dogs, on the other hand, may be treated if caught early. Below is a list of the most frequent cancers in dogs.


This type of dog cancer is an incurable endothelial cell tumor that lines blood arteries. Although Hemangiosarcoma can affect dogs of any age or breed, it is more frequent in middle-aged or elderly canines.

Because this type of canine cancer develops slowly and is practically painless, clinical symptoms do not generally appear until the tumors have progressed to the point where they are resistant to most therapies. Only about half of treated dogs live for more than six months, and many die from severe internal bleeding before treatment can be started.

Mast Cell Tumors

Allergies are caused by immunological cells called mast cells. Mast cells are found in many body organs; however, the most common cause is tumors on dogs’ skin. They might be somewhat hostile or excessively aggressive.

Certain canine breeds are at a higher risk of developing this tumor, suggesting that genetics may play a role. This form of cancer is prevalent in boxers. Visit a dog vaccination clinic to ensure your pet is up to date with vaccinations.


This type of canine cancer can strike any dog at any age. Swollen glands (lymph nodes) can be seen or felt beneath the neck, in front of the shoulders, or behind the knee in most cases. Lymphoma can sometimes affect lymph nodes that aren’t visible outside, such as those in the chest or the belly.

This might make breathing and digestion difficult. This type of canine cancer is often considered curable if caught early enough. Contact a veterinary oncologist to learn more.


The most prevalent type of primary bone cancer in dogs is this type of cancer. It primarily affects older gigantic breed dogs, but dogs of any size or age can be affected.

Osteosarcoma may affect any bone; however, it is most typically found around the shoulder, wrist, and knee. Lameness in the afflicted limb or a swelling over the region that appears painful at the site is also a common symptom. Consult a specialist for additional information about a pet with cancer.

Brain Tumors

The sole clinical indications are frequently epileptic-like episodes or other significant behavioral abnormalities. To evaluate the location, size, and severity of a tumor, CAT scanning and MRI are employed. Although specific oral chemotherapy and radiation treatment can manage some inoperable cancers, surgery may be indicated if the tumor is operable.