Tumors on Dogs’ Legs


Tumors on dogs are usually detectable by palpating the dog’s skin. Tumors can be seemed like lumps and are typically located on the dog’s legs. The tumors may be either benign or deadly and according to the diagnosis, a treatment may be established. Surgery might be an option, and there are certain drugs that might be applied. In many cases, the vet will not advise any kind of treatment.

Causes of Tumors on Dogs

The tumors on a dog’s legs are a build-up of skin cells that might be of different types. In many cases, the growths may contain cancerous cells and these are referred to as malignant tumors. The causes of the development of tumors are not completely understood, but might be attributed to:

  • Sun exposure
  • Direct exposure to chemicals
  • A deficient diet or a diet which contains a great deal of artificial components and preservatives
  • A reaction of the body immune system

Symptoms of Tumor on Dog Leg

The growths located on the legs of dogs may be felt as swellings that can be solid or filled with liquid, depending on the composition of the tumor. The growths might stem from the bones or straight from the skin of the dog. The dog may also have additional symptoms, especially if the growth is malignant and will affect other areas of the body too. Other symptoms of growths can include:

  • Sleepiness
  • Absence of appetite
  • Vomiting
  • Limping and problem moving, specifically if the tumor gets large and affects the bone or the joints

Detecting Tumors on Legs

If you recognize a suspicious swelling on your dog, you should instantly get the viewpoint of a vet. The swelling might not necessarily be a tumor; it might also be a benign cyst or a lipoma. Nevertheless, the veterinarian will perform a couple of tests that will reveal if the lump is a growth.

The structure of the tumor must be established. The growth can be comprised of different types of cells; some might be benign, while others are malignant. A cell biopsy will be performed by extracting a cell sample and analyzing it under a microscopic lense. This test will develop if the dog has cancer.

If the cells are cancerous, the veterinarian must also perform a few x-rays and ultrasounds to spot how advanced the cancer is. The cancer might be in its initial stages or it might currently impact a few internal organs.

Treating Tumors on Dog Legs

The treatment options of tumors on legs will depend considerably on the medical diagnosis established by the vet. If the dog has a benign tumor, this is very unlikely to develop and cause additional issues. A benign tumor may be eliminated through surgery, specifically if it causes discomfort and hinders the dog from carrying out particular motions.

If the tumor contains cancerous cells, surgery is necessary and the dog may require an amputation. If surgery is not possible, the dog will receive chemotherapy and radiation therapy.

Also read: Brain Tumors in Dogs



  1. My dog Janett who is 7 years old was just recently identified with a mast cell tumor on her hind leg. I have also noticed a comparable one on her “cheek”. Any suggestions as to diagnosis or treatment would be much valued.

    • Reyus Mammadli on

      Micky, I have no experience with such issue but found something in internet. Maybe it will be useful for you.

      The tumor was deep in his rear leg, and we attempted to run on it. Obviously I aimed to do what I thought was right to conserve my baby, however in the end, the MCT’s release a lot histamine, it killed him. He had one surgery, then another a month later on– he died following the second surgery. My guidance is not to run on any tumors that the surgeon can not get VERY large clean margins on the tumor. They can surgically remove any little growths that they can get clean margins on. If the growth in the hind leg is big I would not operate. Instead, I would consider perhaps some chemotherapy or radiation treatment to make her comfortable and possibly extend her lifestyle. I want I did that! * If the growth in the cheek can be eliminated quickly, I would consider doing that. The other option is removing the leg. However, a dog that is already 7 years of ages, that seems type of … I do not know.

Leave A Reply