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Why do dogs vomit?

Updated on July 1, 2009

Vomiting is one of the most common causes why dogs are rushed to a veterinary facility. Vomiting is not considered by experts as a disease. Vomiting is actually a symptom of a disease. A vomiting dog may or may not need treatment. Dogs are voracious and indiscriminate eaters. These scavengers would not say no to spoiled food in garbage cans. The dog would usually vomit to expulse the ingested food that does not agree with its stomach. If the vomiting stop after a while and the dog acts its normal self, no veterinary treatment may be necessary. How ever, an owner has to carefully take note of the condition of the dog as vomiting in some cases would need immediate treatment to save the life of the dog.

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Sudden vomiting

Dogs have some very annoying eating habits. Even well fed ones would act as if they have not seen food in a long time. Large amounts of food are wolfed down by the dog. Vomiting in this case is due to over eating. The dog may not need any treatment as once the food is expulsed, the vomiting would stop.

Poisoning/ingestion of toxic substances

Dogs are not only indiscriminate eaters. They are curious animals as well. It would not be uncommon for dogs to ingest poisonous substances. Insecticides, rat poison, antifreeze and even poisonous plants when ingested by the dog can induce vomiting.

Parasitic infestation

Vomiting may be a sign of internal parasite infestation. This condition is most common in puppies and in young dogs. Since some types of intestinal parasites can not be seen by the naked eye it would be best to take the dog to a vet for the necessary examinations and treatments.


Did you know that stress can be one of the causes of vomiting? This is most common in shy or nervous dogs. If the dog has started vomiting after you have brought home a bigger and a dominant dog, it would be best to separate the dogs at least while the shy one is getting accustomed to the presence of the new dog.

Medical causes

The dog’s vomiting can be a symptom of an underlying illness. A vomit that has blood on it would certainly need immediate medical treatment. The blood can be an indication of stomach ulcers, cancer, kidney problems. The vomiting can also be an indication of intestinal obstruction.

Helping the vomiting dog

Occasional vomiting would not be a major concern as in most cases the dog would be its normal frisky self after a bout of vomiting. Severe vomiting would need immediate treatment as it can result to dehydration.

Dog Vomiting Causes

How to remove Dog Vomit from Carpeting

Graphic dog vomit


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    • jackinabox profile image

      jackinabox 8 years ago

      No. Always seek advice from your local veterinarian if you suspect that your dog is ill.

    • profile image

      mandy 8 years ago

      r u a vet?