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Dog cancer

Dog cancer and dog tumors types, causes, symptoms and treatment

Dogs are cherished companions of human beings and when they fall sick, the families are often affected in the same manner as when a family member would fall sick.

Dogs usually experience all of the ailments experienced by humans.

Dog Cancer
Dog cancer is an anomalous and disorganized growth of the cells and tissues. Cancers are persistent and do not respond to the body’s natural mechanisms of control.

Just like in humans, cancers are the leading cause of death in pets too. However, usually dogs are much more responsive to treatment for cancer and therefore there is a higher success rate of treatment.

Due to better veterinary care and the involvement of the families that have adopted them, dogs have started to live longer than before.

This is also why dogs often develop more serious problems and diseases. The incidence of cancers in dogs is twice as high as in human beings. 

Apart from dog tumors and dog lymphoma, there are several other types of dog cancer that your pet may suffer from. Mast Cell Tumors, Fibrosarcomas, Oral Cancers, Mammary Tumors, Osteosarcomas, Hemangiosarcomas, Skin Tumors, Transitional Cell Carcinomas and Undifferentiated Sarcomas are some of the other cancer types that dogs may suffer from. Out of these, dog skin cancer and mast cell tumors are very common. Dog lung cancer and dog liver cancer are also very common.

Exposure to chemicals is the main cause of cancers in dogs. Most of the commercially available food for dogs contains various chemicals, some of which are toxic in nature.

Sodium Pentobarbital, a known toxic chemical, has been found in commercially sold food for dogs. This chemical is usually used to euthanize animals and is present in most of the meat products where animals have been euthanized.

Another deadly toxin called ethoxyguin, used as a preservative, is actually not fit for consumption. These chemicals are largely responsible for cancerous growths as well as many other ailments commonly found in dogs.

Some of the common dog cancer symptoms are:

  • Abnormal swelling in organs or skin that keeps on growing.
  • Appearance of various sores which are either difficult or impossible to heal despite treatment.
  • Unusual and rapid loss of weight.
  • Inattention to play and persistent loss of appetite.
  • Bleeding from natural openings of the body.
  • Bad odor.
  • Stiffness in the body, limping or lameness.
  • Excretion is difficult.


There are several ways to treat cancers in dogs, some of which are surgery, chemotherapy and radiotherapy. The most common treatment procedure for cancers in dogs is surgery.

  Submitted on June 1, 2010  

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