What causes bone cancer in dogs

Canine Cancer - 12 Symptoms To Look For

One in four dogs will develop cancer in their lifetime. About half of all deaths in dogs over the age of 10 are due to cancer.

Unfortunately, a malignant tumor can metastasize much more quickly in dogs. This means that it is always a race against time and cancer that is recognized too late can unfortunately come to a sad end.




The most common cancers in dogs

  • Mammary tumor (milk gland cancer) in bitches
  • Lymph gland cancer
  • Skin cancer
  • Bone and soft tissue cancer
  • Mouth cancer


A dog can also develop cancers such as spleen tumors, mast cell tumors, bone cancer, lung cancer, etc.

In short, dogs can get the same types of cancer as humans.


Are there any signs of cancer in dogs?

Yes there is!

Below are some of the signs that MAY mean cancer.

However, these signs can point to all sorts of other diseases and do not necessarily mean cancer. In addition, depending on the type of cancer, the signs can of course be very different.

So all I can do is keep encouraging you to see your vet whenever you notice any changes in your dog.


How do you know if a dog might have cancer?

The following list shows you signs that can indicate cancer. Please do not hesitate and take your dog to the vet as soon as possible if you discover any of these signs in your dog.

Cancer can progress very quickly, especially in dogs. So please act quickly!


Don't make the mistake many older dog owners make: Don't attribute everything to the natural aging process.

Only the veterinarian can differentiate between normal signs of age and serious symptoms!



12 Signs That You Should Definitely See To The Vet:

  • Lumps on or under the skin

    Whenever you stroke your dog, check for any small bumps, bumps, blisters, or nodules on or under his or her skin. This affects all body regions!

  • Loss of appetite, weight loss, or unusual weight gain

    A lack of interest in food isn't necessarily a cancer signal, but dogs won't stop eating without a reason.
    Sudden weight loss without your dog's diet and eating habits changed is a cause for concern. Some malignant tumors change the dog's metabolism, helping to break down fat and muscle mass.
    Gaining weight very quickly with the same diet is also unusual.

  • Pale gums and other changes in the mouth

    Pale gums could indicate internal blood loss - a common side effect of cancer.
    Oral cancer is one of the most common types of cancer in dogs. Therefore, you should regularly check whether there are any changes in the mouth of your four-legged friend.

  • Unpleasant vapors

    A bad smell coming from one of your dog's orifices (mouth, nose, ears, or anal area) can signal a tumor.

  • Difficulty breathing or coughing

    Does your dog have significant breathing difficulties, is he short of breath or panting at the slightest exertion?
    Or does he cough a lot?
    This could indicate a respiratory infection, a sign of heart disease, but also an indication of cancer.

  • Frequent diarrhea, bloody vomiting and bloody diarrhea

    Here too, going to the vet is inevitable. Bloody vomiting, bloody diarrhea - these symptoms should be checked by your vet IMMEDIATELY!

  • Problems with the excretions

    These include peeing more often, having difficulty peeing or stooling, blood in the urine or feces.

  • Bleeding from your mouth, nose or ears

    Also a serious warning signal that must lead to the vet IMMEDIATELY!

  • Strongly decreasing stamina, up to lethargy

    Older dogs slow down a little in everything and lose stamina. However, if your dog is almost asleep, no longer wants to go for a walk, and no longer shows any interest in playing, then this should be a cause for concern.

  • Open wounds or wounds that don't heal

    Open areas and wounds that heal very poorly or not at all could also be signs of a skin disease, but also of cancer.

  • Movement pain or pain to the touch

    Lameness, a stiff gait or the declining ability, e.g. jumping on the couch, are usually signs of osteoarthritis in older dogs. However, there is also the possibility of developing bone cancer. You yelps or whines and, if you want to touch him or pick him up, he is obviously in pain. The cause must be clarified.

  • Behavior changes

    Your dog withdraws even though he has always been totally clingy? Or is he increasingly aggressive, snapping and maybe even biting? Refused petting? These and other changes in your dog's behavior can be signs that they are feeling very uncomfortable or even in severe pain.


All of these symptoms CAN indicate a cancer / tumor in your dog.
you HAVE TO but not it!


Please don't panic - in many cases the symptoms listed have far more harmless causes than cancer.

It reads very frightening and one or more of these signs will almost always appear with our dog oldies in particular.

Therefore, let the veterinarian clarify everything that seems suspicious to you as soon as possible!


Can it also be that cancer occurs completely unnoticed?

Yes - unfortunately there are cases where there is no obvious sign. No changes in behavior and no other identifiable symptoms. Only when the cancer is already well advanced does it become noticeable in such cases.


Your dog has cancer - what now?

If the examination at the vet has shown that your dog actually has cancer, the question naturally arises: What happens now?

Of course you want the best possible therapy for your dog. Unfortunately, there is no patent remedy for cancer, neither in humans nor in dogs.

Basically there are 3 possible treatment options (often also combined with one another:

Surgery - chemotherapy - radiation

Which of these is useful for your dog depends on many different factors, such as the type of cancer, the stage of the disease and the general constitution of the dog. Only your vet can tell you more details.

If you feel that your veterinarian is overwhelmed with cancer treatment, please do not hesitate to visit an animal oncologist with your dog.



Cancer has many faces - even in dogs. You now know how different the symptoms can be. Therefore: Always see the vet at the slightest suspicion. In most cases he will be able to give the all-clear!


Reading tip:

The way to the rainbow bridge: diagnosis of bone cancer *

A sensitive and relentlessly honest report from a dog owner whose beloved dog Bono fell ill with bone cancer.


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