Cancer In Dogs : The Early Signs Explained

cancer in dogs - pat my pet


Cancer In Dogs : The Early Signs Explained

What I have gathered from my experience in pet parenting is that not all of the pet parents have adequate knowledge about the pet diseases. Frequently, I meet people that don’t have much knowledge about the symptoms of most common diseases in their pets. One of the diseases, although not very common, is cancer. There are handful early symptoms of cancer in dogs and cats and some of them are very common like diarrhea and vomiting, while others are very vivid like huge lumps on the body that can be easily observed upon watching and can be felt upon touching.

cancer is dogs explained
Senior Dogs have more chances to develop a cancer

In most of the cases, cancer effects the older pets, but young ones can also develop this life threatening disease. If you feel or observe a lump on either head or body then it is an obvious sign of tumor in developing stage. The developing lumps can be a bit softer in contrast to the hard cancerous lumps attached to the underlying tissues of the body. Moreover, a tiny small skin lesions can also be cancerous.


Lymph node cancer is the most common type of cancer in young pets, and if you find a swollen lump either in the armpit, both sides of jaw, near the knee area or in the groin then this is a sign of potential cancer, because of the swelling in the lymph nodes. Typically the lymph nodes are difficult to find because of their small size but in case of cancer, they can be easily spotted upon touching the aforementioned parts of your pet’s body.

Possible Symptoms of Cancer

Older animals have their own set of symptoms, one of them is abdominal distention that is more frequent in senior dogs. These distention are the signs of a large cancerous mass in any of the abdominal organs. The very early symptoms of cancer can be confused with regular dog diseases and it is indeed hard to find whether that is because of cancer or some regular disease. Vomiting, diarrhea, coughing, lethargy and sneezing are few of the very early signs, though they can be signs of intestinal infection, flu or other common diseases but in some cases they are signs of the cancer developing the body. The obvious signs of cancer are sneezing blood from nostrils and coughing blood, this could mean cancer within the nose and throat or chest respectively. One of the common cancer in pet is eye cancer, if your pet has a bulging eye, this could be a sign of glaucoma.

Consult your vet if your pet is loosing weight without any apparent illness
Consult your vet if your pet is loosing weight without any apparent illness

If your senior pet, either dog or cat, with no prior seizure history starts having seizures then this is an indication of a possible brain tumor. Female dogs can develop mammary cancer if they are not spayed or neutered, the chances of a mammary tumor increases when your female dog hasn’t been spayed after hear fourth heat cycle. On the other side, dogs can develop uterus and ovary cancer if they aren’t spayed. Just like female dogs, male dogs can develop testicular cancer if not neutered. A dog having testicles of different or uneven size can be definite indication of testicular cancer.

Related : How To Take Care Of Your Newborn Puppy

A significant amount of weight loss in your pet without any signs of sickness is a clear indication of cancer. In my opinion you should consult your vet if your pet is losing weight despite being happy and tidy in eating its meal. Below are the signs that you should consider:

  • Skin lesions
  • Vomiting
  • Sneezing
  • Coughing
  • Lumps
  • Bumps
  • Seizures
  • Abdominal distention
  • Irregular sized testicles
  • Mammary tumors
  • Swollen lymph nodes
  • Weight loss without any illness
  • Vaginal discharge

One again, I would like to mention that these listed signs can be indication of cancer, or may be a sign of simpler and common diseases and health problems. Like always, I would insist you to consult your vet if you observe any of the signs in your pet. Stay Safe, Happy Parenting !

Share your stories with us if you ever encountered such situation, I would love to hear your story and experiences, sound off in the comments.



GD Star Rating
a WordPress rating system
Cancer In Dogs : The Early Signs Explained, 5.0 out of 5 based on 1 rating
Previous articleContagious Dog Diseases And You
Next articleMy Pet Accessories : Must Have Puppy Accessories
Hi, I am Jeni Peterson and I’m a graduate of Florida Medical College with a degree in Rehab Work. Our sole motive is to provide “Quality Information” to the online community seeking answers to their everyday issues related to pets.