Dog vomiting white foam, foamy mucus, yellow foam and not eating

Dog vomiting white foam is a common occurrence. Understanding the various accompanying symptoms can help determine the reason why the dog is going through it. This way, you are in a position to offer the right home treatment as well as know when to visit your vet. We get into the details of these and more below.

Video: Dog Throwing Up Green Vomit

Dog Vomiting White Foam

It is normal for dogs to vomit occasionally. Depending on the cause, it is possible for the dog to through up different forms of material. A dog vomiting white foam is one of them. To learn whether to or not to present the dog to the veterinarian, it is important to have a clear understanding of what could lead to this. Among some of the conditions that may cause it include but are not limited to those discussed herein.

Stomach Upset

In most cases, vomiting results from stomach upsets. This happens when the dog eats something that disagrees with its system or when it drinks water or eats food too fast. When a dog eats grass or other indigestible stuff, this is likely to happen too. Where this is the case, the dog will most likely vomit foam slime and food.

Bilious Vomiting Syndrome

With this condition, the puking mostly occurs when the dog wakes up. It is as a result of too much acid in the stomach and which is likely to happen when the dog has digestive issues. Where the white foam vomiting occurs regularly, it could be an indication that the dog has inflammatory bowel disease or some stomach ulcers.


When a dog is bloated, their stomach is full of gas and swollen. This may happen as a result of food eaten or after the dog has exercised. Like happens in instances where the dog is uncomfortable, it may keep rotating and rolling around. With this, the contents in the stomach get trapped and the veins around are obstructed.

As a symptom of bloating, the dog can be seen foaming white. Other symptoms may include anxiety, restlessness and refusal to sit up or lie down. This problem is a serious one and should be addressed immediately.

Apart from bloating, other causes could be bilious vomiting syndrome, stomach upset or rabies. Whatever the cause, always keep watch over it to ensure it is safe.
Bloating may be the cause of your dog vomiting white foam


When a dog has rabies, there is nerve damage in the throat and the mouth. This makes it hard for the dog to swallow and it can be seen vomiting white foam. Although this is a symptom of rabies, it does not appear until at the end of the disease after many more symptoms have been exhibited.

Kennel Cough

A kennel cough is an upper respiratory system disease which is easily passed on from one dog to another. It is characterized by the dog throwing up white foam and mucus. These may be accompanied by coughing, eye drainage, excessive coughing and nasal discharge. The cough will normally run its course within 14 days. In case it goes beyond this consult a veterinarian.

Additional Causes

In some situations, the dog vomiting foam may have some serious illness. These include pancreatitis, kidney disease, diabetes, or hepatitis. Where the vomiting is severe, visit the veterinarian as soon as you can.

Why is my Dog Vomiting Foamy Stuff?

There are different reasons why a dog could be ejecting foamy stuff through the mouth. Depending on how the vomit looks, you can tell what is causing it. From this you can be in a position to decide whether you are going to take the dog to the veterinarian or administer home treatment. Below we discuss various situations and the kind of vomit that accompanies them to help you decipher the cause and examine the seriousness of the condition.

Dog Vomiting Yellow Foam and not Eating

Where a dog vomits foam and is not eating, it is likely that the color of the vomit will be yellow. This is also quite common in dogs that only feed once in a day. When the dog doesn’t eat for a long duration, it is possible to observe the dog vomiting foamy yellow mucus. The yellowness is caused by the presence of under utilized bile in the digestive system. If this continues, you may want to reschedule their eating by breaking down the set amount of dog food to two or three small meals. If your dog vomiting yellow bile does not stop even after this change, see the veterinarian.


When a dog vomits yellow foam it means that it has an empty stomach and there is bile that has not been utilized in the digestive system.
Yellow dog vomit indicates the expulsion of bile

Other than dogs that are only feeding once and those that are not eating, it is also possible for dogs to vomit yellow where it was initially vomiting undigested food. This happens when the puking has moved from being mild to acute. This shows that the dog has vomited everything within itself and only has bile to through up. Where this is the case, seek immediate medical attention.

Dog Vomiting White Foam and Blood

Of all forms of vomiting, the most serious form is one where the dog vomits blood. This means that there is an obstruction in the intestines or in the stomach. It could also be an indication of infections or ulcers within the digestive system or other vital organs. This can be caused by ingestion of sharp objects that end up tearing internal tissues. It could also result from consumption of toxic substances as well as ring worms for dogs that have not been vaccinated.

Bloody vomit will in most cases be accompanied by diarrhea which may be bloody as well. In severe situations, they could be indicative of hemorrhage. Due to the dangers accompanying any vomit with blood, the situation should be treated as an emergency. Take your pet to the veterinarian so it can be treated immediately. To help in carrying out a fast and appropriate diagnosis, you may want to carry samples of the vomit to the vet.

Dog Vomiting Foamy Mucus

When a dog is vomiting thick foamy mucus, it is likely to be suffering a kennel cough. The condition is an upper respiratory disease that is easily contracted from other dogs. With this condition, the dog gets into a dry hacking cough accompanied by other symptoms such as nasal discharge, lethargy, loss of appetite and fever. Other forms of colds such as parainfluenza in dogs could as well cause a dog to vomit white foam.

Dog Vomiting White Foam Constantly and Shaking

There are a number of reasons as to why this could happen. In most cases, the vomiting is likely as a result of a stomach upset which could be triggered by introduction of new treats or food to the dog’s diet. It is possible for pets to have reactions to new things they ingest. The shaking could be as a result of accompanying fever, anxiety or pain. If you suspect it is caused by something the dog is eating, withdraw it from their diet.

My Dog is Vomiting White Foam in the Morning

This is a common case presented by pet owners. When your dog is vomiting white foam in the morning, it could be as a result of acid reflux. This occurs when there is a buildup of acid in his stomach over the night. To help in calming this, you can offer the dog some boiled rice and chicken. Another reason why your dog could be vomiting white foam in the morning is when it is pregnant.

Home Treatment for Dog Vomiting and When to See a Veterinarian

Like discussed above, there are a lot of reasons why your dog could be vomiting. Some of the causes are straight forward while some are not. Where the dog seems healthy and has no accompanying severe symptoms, you can treat it at home.

Try to withhold food from the dog for at least 12 hours. During this time, instead of water, offer ice for hydration. Follow this up with a sugar solution to see if the dog can hold anything down. If it does, go ahead and feed it on a bland meal after 24 hours are over. You can offer it boiled rice and chicken.

Always visit the veterinarian when the dog keeps vomiting, appears lethargic or has blood tinged vomit. These may be indicative of serious underlying conditions.
See your vet when the dog appears lethargic

Where it is not certain what the cause of the vomiting is, it is best to visit a professional. Puppies are especially most vulnerable and their health can deteriorate very fast. They should therefore be keenly observed. Visit a veterinarian when the dog keeps vomiting constantly, the vomit is blood tinged, when the dog appears lethargic, where the dog acts as if it wants to vomit but nothing is expelled, keeps panting and does not eat for long durations. This is because the vomiting could be a sign of more serious conditions such as pancreatic disease, kidney problems, liver conditions or infections in the gastro intestinal system Dog Vomiting White Foam Dog Throwing Up White Foam Why does My Dog Vomit Yellow Foam? Chihuahua Vomiting Foam Why is my Dog Vomiting? Vomiting in Dogs

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