Gastrointestinal Cancer in Dogs and Cats

Common info

Gastrointestinal cancer is a condition when the cancer cells spread to the gastrointestinal tract, digestive system, including the esophagus, stomach, pancreas, intestine, bowel, anus, and rectum. The disease commonly found in cats and dogs, especially those of older age. Male pets seem to be more prone to the disease than females. The common symptoms found in gastrointestinal cancer in dogs and cats include vomiting, loss of appetite, stomachache, and incomplete evacuation, etc. 


The cause of gastrointestinal cancer in dogs and cats is still unknown but believes the disease may implicate the genetic factors which happen in Belgian and Shepherd breed.


Adenocarcinomas are the most common gastrointestinal tumors in dogs and cats. This cancer is originating in glandular tissues and epithelial walls of the body organs. It can metastasize to all parts of the body, like the gastrointestinal tract, which may include a stomach, intestine, bowel, and anus.


  • Vomiting
  • Vomiting blood
  • Loss of appetite
  • Weight loss
  • Stomach ache
  • Blood in stool
  • Incomplete evacuation

The symptoms most commonly experienced are all related to the gastrointestinal tract which includes: vomiting, weight loss, loss of appetite, stomach ache, vomiting blood, blood in stool and incomplete evacuation.

Treatment and Prevention

The most preferred treatment is the surgical removal of tumors. The best option is to seek recommendations from the cancer-specialized veterinarian so that the most proper treatment can give to pets.  

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