Top 10 Most Common Signs of Cancer in Pets

Do you have a pet that you are concerned may have cancer? Check out this Top 10 List and see if your pet’s signs/symptoms are on there.


Top 10 Most Common Signs of Cancer in Animals


  1. Lumps and Bumps – Not every lump or bump is necessarily cancerous, but consulting with your vet is the only way to be sure. If the lump is growing or not going away, contact your veterinarian and they will can do a biopsy to determine the contents of the bump.
  2. Abnormal Odors –  Stinky odors from any of your pet’s orifices and/or body parts may be a cause for concern. Cancers of the mouth, nose, or anal regions can cause your pet to emit offensive odors.
  3. Abnormal Discharges – Discharges such as blood, pus, vomit, diarrhea, and any other abnormal substance being excreted from your pet’s body should be checked out by a veterinarian immediately. A bloated or distended stomach could also be a sign of internal discharge.
  4. NonHealing Wounds – Lacerations or sores that do not heal within a normal period of time on your pet’s skin may indicate infection, skin disease, and possibly cancer.
  5. Weight Loss – Sudden weight loss in pets not on a diet can be an indicator of many diseases and illnesses. If coupled with another warning sign of cancer, you should contact your vet right away and inform him or her about your pet’s symptoms.
  6. Change in Appetite – While a lack of appetite in our pets can be an indicator of many things, they never stop eating without a cause. Not necessarily a sign of cancer, a decrease in appetite can indicate an oral tumor, which would make it painful and difficult for your pet to eat and swallow.
  7. Coughing or Difficulty Breathing – Although symptoms of heart and lung disease, coughing and abnormal breathing can also indicate cancer. This symptom will most likely occur if the cancer in your pet’s body has metastasized into his or her lungs.
  8. Lethargy and Depression – If your pet has cancer, there is a chance that he or she will suffer from depression and sleep more, become less playful, and be less willing to go for walks. Although lethargy or depression in pets can set in with any illness, it is commonly seen in pets that have cancer.
  9. Changes in Bathroom Habits – Any changes in your pet’s bathroom habits including difficulty using the bathroom, frequent bathroom use, and blood in urine or stools are potential warning signs that cancer has developed in your pet.
  10. Evidence of Pain – Limping or other evidence of your pet in pain when he or she is active, or if the pain is too great for them to be active, can be indications of cancer of the bone.

These signs/symptoms are not the only ones, simply the most common. If you are concerned that your pet may have cancer please consult your veterinarian. We are also not saying that your pet DOES have cancer if they exhibit one or a few of these symptoms only that it would be a good idea to get a diagnosis if you are concerned. Our goal is to be a place where you can find information.



Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.