Why Is My Dog Vomiting?

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Dogs can vomit for several reasons. Not all of them have grave underlying reasons. Vomiting usually occurs f the indigestible object makes it to the stomach. 

By Guest Blogger, John Wood

Dogs can vomit for several reasons. Not all of them have grave underlying reasons. Dogs have the habit of ingesting and swallowing random objects from the ground – a bit of dirt here, a dead insect there. That often causes vomiting if the indigestible object makes it to the stomach. 

Alternatively, they can also vomit for the same reason as we do – indigestion. When they eat in excess or eat something that does not agree with their body, dogs tend to throw up soon afterward. 

But vomiting is not always normal, which you can identify from the expelled look or smell. 

You cannot take the risk with the health and mental health of your little buddy if there are unusual symptoms like-

  • – Blood coming out while vomiting
  • – Continuous vomiting
  • – Excess vomiting every single time
  • – Vomiting besides having other health problems like fever, diarrhea, etc.

If you notice this happening, you must take him to the veterinarian’s clinic as soon as possible. There might be some serious problems underlying that would require medical attention. Provide the expert with all the details of your dog’s health condition before and post vomiting, food habits, medication, etc.

Your vet is the best person to consult, but here are some common reasons that can cause vomiting in your pet dog:

There are two types of vomiting, one being acute and another being chronic. In both types, there can be chances of having life-threatening diseases. 

Acute Vomiting

When you find your dog vomiting all of a sudden, that is termed as acute vomiting. Reasons can be –

  • Intake of toxic or foreign substance
  • Bacterial infection
  • Intolerance of a particular food
  • Kidney dysfunction or acute kidney failure
  • Pancreatitis
  • Bloat (more common in Labrador, German Shepherds, Standard Poodles, Golden Retrievers, Great Dane)
  • Uterine infection
  • Liver failure
  • Cancer
  • Internal infection
  • Intestinal parasites
  • Reaction to medicines

This can happen because of toxic water intake as well. Make sure you are not feeding your dog with contaminated water. If you are taking them out for a walk, carry a bottle of water with you. 

Do not let them lick any water from puddles, ponds, or lakes as there can be cyanobacterium present in the water, which is deadly for your pet. The blue-green algae, once ingested, can cause neurological problems with vomiting as a symptom. 

Chronic Vomiting

Chronic vomiting is when your dog is throwing up very frequently. Generally, this type of vomiting is a bit concerning as this might be the primary sign of a critical condition. The reasons may be-

  • Parvovirus (more common in German Shepherds, Doberman Pinschers, Labrador, Rottweilers)
  • Acute Liver or Kidney failure
  • Pancreatitis (common in Shetland Sheepdogs, Schnauzers, Yorkshire terriers)
  • Constipation
  • Uterine inflammation
  • Colitis
  • Intestinal obstruction
  • Cancer

Apart from the above-mentioned diseases, there can be a few more that cannot be categorized. The transformation time of a dog’s life is very crucial. That is the time between being a puppy to becoming an adult dog. 

They are vulnerable and prone to diseases during this time and need much care. Also, inborn diseases might be the reason for their throwing up frequently, like Addison’s disease, Hypothyroidism, or maybe Megaesophagus (enlarged esophagus), etc.

Texture and color of the vomited substance

If you notice minutely what color and texture your dog’s vomited substance has, you might understand the actual cause of his illness.

White-colored frothy textured vomit

 An acidic reaction in the stomach can lead to this vomit type. When it comes into contact, the acid in the stomach forms the frothy texture and white color of the vomit.

Green-colored vomit

This might be a sign of gall bladder stone in your dog’s stomach if it happens in the morning time. Another reason can be that the dog had an intake of too much grass, which induced the green color. Dogs sometimes chew on grass to induce vomiting if something is stuck in their throat or they feel unwell in the stomach. 

Slime-like vomit

While drooling, any kind of irritation in the stomach leads to nausea followed by vomiting. Your dog is expelling the mucus from his stomach by vomiting, and that is why it has a slimy texture.

Brown-colored vomit

A brown colored vomit can be found when your pet has failed to digest the food either by not chewing it properly or eating very fast. The undigested food forms a brown color.

Yellow or pale vomit

Bile (yellow color) is secreted when your dog is on an empty stomach for a long time. This is a common cause of vomiting in dogs and generally happens in the first hours of the day or at midnight.

Reddish vomit

Reddish vomit means it has blood in it. This type should never be ignored, as it may be a sign of severe disease. Though pinkish vomit is not of utmost emergency. Contact your vet before it is too late to treat.

Liquid texture vomit

This time your dog has drunk too much water on an empty stomach, which has made him feel nauseous. That led to throwing it up.

When should you rush to the vet clinic?

Being a parent, be it of a human or a dog, is a crucial role to play. But, for a pet parent, deciding on when you should rush to the vet is the most crucial thing to do. Monitoring if not every single thing, then most of your dog’s behavior, his eating habits, etc., should be your foremost priority.

Taking care of the pet is important during his illness, but looking after him throughout is what will refrain from any at all. Keep your dog hydrated as it has been proven that dehydration is the most common reason for vomiting, followed by another bodily dysfunction.

Once started, if your dog continues to vomit for more than 8-12 hours, you should waste no time and visit a vet. Do not take any risk without knowing the condition of his health. If he refuses to eat any kind of food or is lethargic, then it’s obviously an emergency.


There are many articles and videos you will find on the internet claiming that few medicines and home remedies can help treat acute or chronic vomiting. But do not ever fall into that trap. Consult with your vet before giving any medicine or applying any home remedy on your dog as the situation can deteriorate instead.


about the author

John is the Founder of All Things Dogs and leads the editorial team as Editor in Chief. A member of the Association of Professional Dog Trainers, he has been a dog lover since he was 13 years old. John is the parent to Nala, a working lab retriever. John has also volunteered at multiple animal shelters, where he gained firsthand experience of rehabilitation and force-free positive reinforcement training methods.

For more pet care tips, advice, and inspiration, look no further than Spike’s Dog Blog!

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