Causes of Dog Vomiting

Tags: Puppy 101, Health

Causes of Dog Vomiting

Dog vomiting may be caused by an uneasy stomach or may point to some severe diseases. Rare episodes of vomiting should be no reason for concern; however, if the vomiting is chronic, this should be an alarming sign.

Symptoms of Dog Vomiting

Nausea may cause excessive salivation. You may notice that your dog will throw up undigested food, liquid, grass or even blood.

The dog may also display other symptoms, according to the cause of vomiting:

  • Lack of appetite
  • Diarrhea
  • Dehydration
  • Seizures
  • Weight loss
  • Dry gums

Upset Stomach

If the dog has ingested something that does not agree with his stomach he may throw up. Even if your dog has eaten too much food, he may throw up.

Heat Stroke

A dog that spends time in hot sun for too long may suffer from heat stroke. Dogs don’t have great capacities to eliminate heat and heat strokes may be fatal. Vomiting is among the symptoms of heat stroke.

Keep your dog in cool places during warm days and avoid heavy workout during the hottest days.


Intestinal parasites may often cause vomiting. Take your dog to the vet and diagnose any possible parasites.

Changes in Diet

If you have recently changed your dog’s diet, he may not react well and will vomit. Whenever you alter your dog’s diet, make the transition gradual to avoid possible issues.


Dogs are curios pets and may eat from garbage or toxic plants. Dogs may get poisoning and vomiting is among the symptoms of poisoning.

If your dog has swallowed too many of his prescription drugs or human drugs, this may also cause vomiting. Take your dog to the vet immediately.

Vomiting is beneficial for poisoned dogs, as they may eliminate the toxic ingredients.


Bacterial and fungal infections may cause vomiting in your dog. Try to prevent these infections by maintaining a proper hygiene for your dog and control what your dog eats. Keep your dog away from other dog feces that may transmit different viruses or infections.

Other more serious medical conditions that may cause your dog to throw up include:

  • Parvovirus
  • Kidney disease
  • Liver disease
  • Ulcer
  • Thyroid problems
  • Colitis
  • Gastritis
  • Diabetes
  • Tumors
  • Inflammatory bowel disease

Monitoring your dog is crucial. If the vomiting persists for more than 24 to 48 hours you need to visit the vet. However, if you suspect that your dog has poisoning or medication overdose, you need to get to the vet immediately.

You need to prevent dehydration when your dog is vomiting.

Treatment of an Upset Stomach

The treatment for vomiting depends on the underlying cause. Medication or injections may be administrated to relieve an upset stomach and to prevent dehydration. However, if the dog has swallowed a foreign object, this will have to be removed surgically.

Preventing Vomiting

Vomiting may be prevented by making sure your dog doesn’t have access to toxic plants, medication or small objects that may be easily swallowed. Give your dog sufficient food that contains all the necessary nutrients, to make sure he won’t inspect your garbage.

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