Dog Vomiting Types And Causes

Dogs are prone to vomiting. This is because the dog’s vomiting center is more developed and has physiological vomiting. Dog vomiting has two effects on the body itself. On the one hand, it can damage the body. Severe vomiting can cause the body to quickly dehydrate and lose electrolytes which will lead to heart failure; On the other hand, it has a positive effect on the body. Dog Vomiting can clear poisons or toxins in the gastrointestinal tract, and mild vomiting can also stimulate the function of some internal organs. There are many causes of vomiting in dogs. You must make a differential diagnosis and take corresponding treatment measures once your dog vomiting.

Common Types and Characteristics of Vomiting:

  1. One-time Vomiting: The symptoms of one-time vomiting is that it will stop immediately and no longer vomit thereafter. It is generally seen in overeating, strenuous exercise after satiety, intolerance to food, emetic in clinical medicine, but also in stress stimulation or extreme excitement.
  2. Intermittent Acute Vomiting: It is characterized by a short course but recurrent with a long vomiting episode, and a short interval between vomiting. Not only does vomiting occur after feeding, but also occurs when the stomach is empty. When vomiting is severe, with blood, bile or intestinal dissection, and it is generally seen in diseases such as acute inflammation of the gastrointestinal tract or intestinal obstruction.
  3. Intermittent Chronic Vomiting: It is characterized by a long course but with recurrent, which is not related to the time of feeding. The vomit characteristics vary greatly and are periodic, accompanied by other symptoms. Generally seen in chronic inflammatory of the gastrointestinal tract, allergic bowel syndrome, systemic diseases or metabolic diseases.

The causes of dog vomiting are numerous and complex, but they can be summarized as following:

  1. Virus Infection: There are many kinds of viruses that can cause vomiting in dogs. The more common ones in clinic are canine distemper virus, canine parvovirus, canine adenovirus type 1, canine adenovirus type II, canine coronavirus, rotavirus Either can cause vomiting.
  2. Parasitic: Roundworm, nematodes, tapeworms, coccidia, etc., which are common in the clinic can cause vomiting in dogs.
  3. Poisoning and Allergic: Food poisoning, drug poisoning, toxic side effects of drugs, and allergic reactions caused by the dog’s own low drug resistance.
  4. Metabolic Diseases: Adrenal insufficiency, acidosis, alkalosis, ketoacidosis, hepatitis, abnormal calcium and magnesium ions in blood can also cause vomiting in dogs.
  5. Nervous System Diseases and Neurological Dysfunction: Brain tumor, cerebral hemorrhage, concussion, hepatic encephalopathy, severe pain, mental stress caused by fear, extreme excitement, carsickness by transportation, seasickness, and summer heatstroke can directly cause vomiting.
  6. Other Diseases: Gastrointestinal ulcer, liver disease, pancreatitis, esophageal tumor, severe tonsil enlargement, pyometra, intussusception, intestinal obstruction, intestinal constipation, esophageal obstruction, etc. may cause vomiting.


Due to the different cause of dog vomiting, the clinical treatment measures also vary from disease, but the general principle of treatment is to remove the cause and control vomiting. Meanwhile correcting fluid electrolytes and acid-base balance.


Vomiting is one of the common clinical symptoms in dogs. If the situation is mild, it can be improved by adjusting diet and lifestyle. If it is more serious, you should check with your vet for medical treatment in time.

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