My Dog Vomits White Foam: Causes and Treatment

Mi Perro Vomita Espuma Blanca: Causas y Tratamiento

Dogs are one of the animals most desired by all of us and they are the ones we most consider adopting to become part of our family. However, these precious animals suffer from many diseases, an amount quite close to what we as human beings can suffer from, which makes it probable that each of them has gone through the episode of vomiting white foam.

We invite you to continue reading this blog since Waggys compiled for you the information necessary to learn about this act. Here the reasons, symptoms, treatments, diagnoses, courses of action, among other topics that may be of help to you, will be explained. Are you ready? let's get started

Why is my dog ​​vomiting white foam? Reasons

Pale vomit, or as we know it, white foam, occurs due to excess gases and air in our furry friend's stomach. The white foam is a mixture of saliva and whipped gastric juices, so if our dog vomits it, it is most likely because there is nothing left in his stomach to purge.

What happens if he vomits white foam?

There is no reason to panic. Although pale vomit can be very noticeable, it is also likely that it is nothing serious and that our quadruped friend will feel fine much sooner than we expect. Even so, it is important that we know the possible causes and their symptoms so that in any case, we can have some accurate information that will help us inform the veterinarian.

Common causes

Some of the common and not so alarming causes are the following:

Prolonged fast

If a dog goes without food for a long time, he may vomit pale or white foam due to the buildup of gastric acid in the empty stomach.


Irritation or inflammation of the stomach lining, known as gastritis, can cause vomiting of white foam. Causes of gastritis may include irritating foods, changes in diet, ingestion of foreign objects, infections, or adverse reactions to medications.

Stress or anxiety

Dogs may also vomit due to stress or anxiety, which can lead to the production of white foam due to excitement or excessive salivation.

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Gastrointestinal obstructions

Ingestion of foreign objects or the presence of an obstruction in the gastrointestinal tract may cause vomiting, including pale or white foamy vomiting.


Probably one of the first symptoms that we detect is vomiting itself, however, it is necessary that we try to follow it up and identify any of the following symptoms that accompany it so that the veterinarian has more information to make a diagnosis.

Loss of appetite

Dogs that have stomach or gastrointestinal problems often show a decrease in their appetite and may refuse food.


Dogs that are not feeling well due to digestive problems may show a lack of energy and appear less active than normal.

Abdominal pain

Some dogs may show signs of abdominal discomfort, such as hunching, whining, or showing discomfort when you touch their abdomen.

Excessive salivation

Vomiting and stomach irritation can cause the dog to produce more saliva than normal.


In some cases, pale or white foamy vomit may be accompanied by diarrhea, indicating a possible more serious gastrointestinal condition. Read about: diarrhea in dogs


Fluid loss due to vomiting and lack of water intake can lead to dehydration in dogs. Signs of dehydration include dry gums, lethargy, and skin that doesn't return to its normal position when you pinch it.

Changes in behavior

Dogs may show changes in behavior, such as irritability or restlessness, due to discomfort caused by vomiting and the underlying illness.

Treatment and care at home

It is important to remember that the treatment should always be carried out by a professional, however, there are actions that you can take from home to help calm the foam in your intestine. Withhold food for up to 12 hours and offer your dog ice instead of water until symptoms disappear. When your dog is ready to eat again, offer him a small amount of easily digestible food (such as boiled chicken and rice). If you tolerate food.

Veterinary diagnosis

The veterinarian will perform clinical examinations, which usually include blood tests in order to check the degree of dehydration and the body's reaction to electrolyte imbalance. Sometimes, the veterinarian complements this with an x-ray or ultrasound, as well as a stool analysis, to diagnose the cause of the animal's symptoms. Normally, dogs with mild symptoms can be injected with fluid subcutaneously out of hospital, while those that are moderately affected or dehydrated are generally admitted for fluid treatment in the form of intravenous saline and nutritional solutions.

When to worry about a dog vomiting?

Sometimes pale vomit can be an indicator of a more severe illness. That is why we must be aware of whether our friend has any swelling or any symptoms of the following diseases:

Liver disease

Liver problems, such as liver disease, liver failure, or a blockage in the bile ducts, can cause pale or white foamy vomiting.


Inflammation of the pancreas, known as pancreatitis, can cause vomiting in dogs, often with yellow or foamy vomit.

Infectious diseases

Some infections, such as parvovirus, can cause vomiting in dogs, often accompanied by other symptoms such as diarrhea and fever.


Ingestion of toxic or poisonous substances can cause vomiting in dogs. Vomiting may vary in color and consistency depending on the type of substance ingested.

Other diseases

Serious illnesses such as kidney failure, cancer, and other medical conditions can manifest with vomiting as one of the symptoms.

Remember that Waggy's always recommends being in contact with your veterinarian since they are professionals who will know how to guide you and will be able to help your pet.

How can I prevent my dog ​​from vomiting?

Below we tell you 5 recommendations that you can put into practice to prevent your dog from vomiting:

  • Avoid letting your dog eat things off the floor, as these objects can affect him in the future.
  • They must be given quality food so that they do not suffer from any of the diseases already mentioned; It is advisable to only provide dog food.
  • Avoid swallowing any type of object in your home such as (toys, cushions, cleaning products, socks, etc.).
  • Avoid giving human food, such as onion, raisins, or chocolate; Treats do enormous harm to your pet.
  • Avoiding strong temperature changes in dogs is essential so that the dog does not feel tired, exhausted and does not expose any substance.


In conclusion, pale vomiting can be a normal situation in our pets, however it never hurts to be aware of all the symptoms they present so that with the help of a professional, the possibility of a serious illness can be ruled out.

At Waggys we care about the health of our pets and that is why every week we seek to provide you with useful information to together safeguard their physical and mental well-being. This is why I recommend that you take a look at the following articles: leishmaniasis in dogs , distemper in dogs , epilepsy in dogs , heat stroke in dogs and dyspnea or respiratory problems in dogs .

See you in the next blog, thanks for reading us.

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