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why dogs throw up

Vomiting is when your dog forcefully ejects the contents of the stomach or the upper intestine. A vomiting dog may show abdominal heaving and nausea.

Dog vomiting may happen for several reasons. It could be that your dog ate more than they could handle or ate too fast, or your dog could have eaten too much grass.

Sometimes the cause could be more serious. Your dog could have swallowed something toxic, or it may be a sign of a serious illness, which could require a visit to see your vet.

It is important to know the difference between an isolated case of vomiting and chronic vomiting. 

You should also be able to tell if your dog is vomiting or regurgitating. Dogs mostly regurgitate soon after eating, and it’s a mostly passive process — the dog simply lowers their head and food comes up, without active abdominal contractions like in vomiting. The food expelled during regurgitation is usually undigested and without bile. But vomit is partially digested and has some bile. Your dog will almost always try to eat regurgitated food.

Why Is My Dog Throwing Up?

Knowing the root cause of your dog’s vomiting is essential for finding the best solution. Here are some possible causes of a sudden or acute episode of vomiting:

  • Intestinal parasites
  • Bacterial infections (gastrointestinal tract)
  • Ingestion of toxic substances
  • Diet change
  • Food intolerances
  • Bloat
  • Foreign substances in the gastrointestinal system (toys, garbage)
  • Viral infections
  • Heatstroke
  • Acute kidney failure
  • Pancreatitis
  • Acute liver failure
  • Certain medications
  • Intestinal inflammation
  • Intestinal obstruction
  • Constipation
  • Pancreatitis
  • Cancer 
  • Kidney failure
  • Liver failure
  • Parvovirus
  • Colitis
  • Uterine infection

Why is my dog throwing up frequently? Frequent throwing up can be a sign of a serious medical condition. Watch for symptoms like these:

  • Abdominal pain
  • Weakness
  • Vomit with blood in it
  • Depression
  • Weight loss
  • Dehydration
  • Fever

If your dog is throwing up food and also has any of these symptoms, take them to the vet.

If your dog throws up and continues eating with normal bowel movements, it might just be an isolated incident. But if your dog is vomiting and not eating, you should check with your vet to rule out serious conditions.

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