Cancer. There is little that you fear more than hearing the veterinarian state your friend might have it, when you have a dog.

But if you know the common warning signs of cancer in dogs, you might have the ability to receive your precious canine companion and give her a better chance of beating on it.

We highlight the top 11 warning signs of canine cancer.

Loss of Appetite

Your dog stops eating or has a drop in appetite, she needs to be seen by a vet right away. Problems are caused by many types of cancer with body systems that are numerous. Any of these can leave your dog not eating due to pain, nausea, or disturbances.

Please note: the signs of illness mentioned in this article can all mean something apart from cancer, also. It’s crucial that you create a appointment with your veterinarian.

Unexplained Weight Loss, rapid

Even if your dog was overweight if she suddenly starts losing weight to begin with when you haven’t changed anything about her diet and exercise routine, you should be worried. Cancer changes the way nutrients are used in the body, and weight loss is common with many forms.

Sores on the Skin

Cancers of the skin often seem like small lumps or bumps. If there is an area on your dog’s skin that became open and oozing, started out looking like a scratch or scrape, and hasn’t healed in a reasonable time period, you should see the veterinarian. This could be a sign of skin cancer.

Foul Odor

A terrible odor from anywhere in your dog may be an indication of cancer. Bad breath could indicate cancer that is internal or oral end odors could be a digestive tract or problem, and skin odor could be skin cancer. Make an appointment with your vet, if your dog has a foul odor with no cause.

New Bumps or Swellings

Many times, cancer in dogs appears as growths on the body. It can occur on the skin, while this may occur internally, rendering it invisible. Have any growths checked out by your veterinarian. Some inner tumors may cause a visible swelling of the abdomen, also, so have that checked out right away if you notice it.


If your dog starts limping or holding up a paw, you should see the veterinarian immediately. One of them is cancer, particularly osteosarcoma while there are many causes of lameness. Your veterinarian may be able to determine why your dog is limping during a exam, if he or she is concerned about cancer, but x-rays might be required.

Difficulty Excessive and Eating Drooling

If your dog tries to eat but seems to have trouble, rolling the food in her mouth or allowing it to drop out, it might indicate an tumor. Excessive drooling occurs with this condition.

Tiring Easily

If your dog starts to show decreasing endurance, have her checked out. There may be a reason, When it can be easy to attribute signs of slowing down to aging. The symptoms of cancer can be subtle so it is important to bring any concerns, even the ones that seem minor, to your vet’s attention.

Coughing or Difficulty Breathing

Her breathing looks labored or if your dog is coughing, it is important to get her an appointment with her doctor right away. While conditions other than cancer, such as heart disease, can cause coughing in dogs, it’s important to check for lung cancer.

Changes in Defecation or Urination

If your dog starts urinating less than normal, straining to urinate, having diarrhea, showing constipation, or straining to defecate, have her looked at by her physician. One or more one of these signs can indicate several other conditions that should be treated, in addition to cancer.

Personality Changes
You know your dog better than anyone. Spotting small character changes such as being clingier more aloof, or grumpier can alert you to a problem. Once you see a change like this, make certain to pay more attention to everything else: desire, elimination habits, gait, etc.. The more information you gather to deliver to your vet, the easier it’ll be for him or her to make a diagnosis.

Final Thoughts

While nobody wants to hear the word”cancer” in relation to their dog, it’s important that owners not put their heads in the sand and ignore possible warning signs. Whether the issue turns out to be cancer or something else, the faster it can be diagnosed, the better for everyone involved, especially your dog.