Dog with diarrhea and vomiting: what can it be?

Author: Laura McKinney
Date Of Creation: 6 August 2021
Update Date: 20 September 2024
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Pet Tips - Vomiting and Diarrhea
Video: Pet Tips - Vomiting and Diarrhea

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Vomiting and diarrhea are relatively common processes in dogs and can sometimes worry their caregivers, especially if don't disappear, if you notice bleeding in vomit or feces, or if the clinical picture worsens with other symptoms such as anorexia, apathy or fever.

In this PeritoAnimal article, we'll explain what can give rise to a dog with diarrhea and vomiting. We will see the most common causes, as they are very numerous and can range from simple indigestion without major complications to a serious viral disease, such as canine parvovirus, including diseases of other systems, such as the kidney, which can affect the digestive system.


Dog with diarrhea and vomiting

To explain why a dog vomits and has diarrhea, it is customary to focus on his digestive systemAs the most common causes of this disease are rooted in a gastrointestinal dysfunction, therefore, it will be able to affect the stomach, small or large intestine, which will produce some variations in the appearance of vomiting or diarrhea.

Is important distinguish between vomiting and regurgitation. The first is produced with effort and abdominal movements and sounds are observed, while in regurgitation food or liquid expels itself. The diarrhea is the frequent debris and liquids. Also, you may notice the presence of blood. In the stool, fresh blood is called hematochezia, while digested blood, which appears dark in color, will be called melena.


It is important to pay attention to all these data and, at the appropriate time, transmit all the information to the veterinarian in order to reach the diagnosis and, consequently, the treatment. If your puppy occasionally vomits or even has diarrhea without showing any more symptoms and is in a good mood, this is not a concern. However, if these episodes repeat in a short period or occur recurrently for weeks or months, it is necessary to see a veterinarian, which also happens if your puppy has other symptoms.

Dog with diarrhea and vomiting: main causes

Watching your dog, you should explain the chart to the veterinarian. With all this, the physical examination and the tests considered pertinent, the veterinarian will discriminate between the various causes that explain a dog vomiting and diarrhea. The most common are as follows:


  • Infections: both those caused by bacteria and viruses or protozoa, produce vomiting and diarrhea and must be treated by a veterinarian.
  • Indigestion: Dogs tend to overeat, including questionable products such as human leftovers or garbage, and although the canine stomach is prepared for some of these "edible" elements, it's no wonder they end up with diarrhea and vomiting, which often regress spontaneously.
  • Food intolerances or allergies: in these cases, you will notice chronic vomiting and diarrhea, in addition to other more frequent symptoms such as itching. It requires veterinarian follow-up, allergy tests in dogs and implementation of a hypoallergenic diet.
  • Medicines: Some medications produce digestive changes that result in a dog having diarrhea and vomiting. You should check with your veterinarian if your dog is taking medication, as well as provide the medication name and dosage. In this case it will be necessary suspend or change treatment.
  • underlying diseases: sometimes there are disorders such as a kidney disease which, among the consequences produced in the body, includes vomiting and diarrhea. They are usually detected in a blood test and this symptom will depend on how we can control the underlying disease.
  • Obstructions: Due to the greedy nature of dogs, it is not uncommon for them to ingest objects such as bones or toys that produce an obstruction somewhere in the digestive system. It is not advisable for him to go out alone, as, on occasions, the object can cause damage that requires surgical intervention.
  • Poisoning: the ingestion of some products can cause a condition of poisoning whose symptoms include vomiting and diarrhea. These are usually life-threatening veterinary emergencies for the dog.
  • parasites: in very severe cases of parasitosis or when this occurs in especially vulnerable animals, vomiting and especially diarrhea can be observed. The veterinarian, examining the stool, will be able to determine the type of parasite and administer the appropriate dewormer. At this point, it is important to highlight the importance of establishing an adequate deworming schedule.
  • Stress: in cases of very severe stress or when it lasts for a long period, the dog may have vomiting and diarrhea and will need the help of a professional.

Given the number of possible causes of a dog with diarrhea and vomiting, we will look at three specific situations as an example in the next sections.

Dog vomiting and diarrhea with blood

We have seen how blood can appear in the stool in a fresh (hematochezia) or digested (melena) form. This aspect helps to locate the source of the same, which will facilitate the explanation of why your dog vomits and has diarrhea, in this case, with blood.

When fresh, it will be manifested by problems in the lower digestive system (large intestine, rectum and anus), while if it appears digested, blood will proceed from the stomach, small intestine and even the respiratory tract that ends up in the digestive system by swallowing.

The simultaneous presence of vomiting leads to a diagnosis of gastrointestinal disorder. Also, it is important to note if your dog has other symptoms or maintains a mood. It is the veterinarian who must determine the exact cause in order to start the most appropriate treatment.

Dog with diarrhea, vomiting and no appetite

A dog with diarrhea, vomiting and no appetite describes a typical picture of gastrointestinal disorders. It's easy to understand that your dog doesn't want to eat if he has a "tummy ache". As we have seen, it can be a specific situation that is not serious, due to a binge eating, for example.

In these mild cases, symptoms resolve spontaneously within a few hours, but if the dog gets worse or the condition doesn't reverse, you should see your veterinarian to investigate why your dog is vomiting and has diarrhea. During these episodes, you should not offer water or food to the animal as, eating or drinking, it will vomit whatever it receives.

After a few hours, you can offer a little (little!) of water for just a few sips. If the animal does not vomit after half an hour, it means it tolerates you and you offer a little more water. In these mild cases, the dog is generally not dehydrated. In a few hours without vomiting or diarrhea, you can offer food. If the episode was very mild, the food portion should be smaller than usual to make sure your pet's body accepts well.

If there is vomiting for a few hours, it is best to restart the diet with a special diet, more digestive. You can also give some rice, ham, boiled chicken, without salt or sauces, or plain yogurt without sugar. Once the episode is resolved, prevention is essential for cases of preventable diarrhea and vomiting, such as those caused by excessive or inadequate food intake.

You must follow the following recommendations:

  • Avoid your puppy's access to potentially toxic substances, such as detergents or insecticides, but also to human foods, as some foods are not suitable for dog consumption. Also prevent access to trash. Likewise, you must avoid playing with potentially dangerous objects that could be swallowed.
  • Get him used to quality food, in the dose recommended by the manufacturer.
  • Follow the vaccination and deworming schedule recommended by the veterinarian, as this will avoid some serious infections caused by the virus and also the negative effect of intestinal parasites.
  • Never medicate your dog without a veterinary prescription. Even the most common drugs in human medicine can be deadly to a dog because they don't metabolize them like the human body.
  • Offer proper lifestyle habits that avoid stress.
  • Find a veterinarian. When vomiting and/or diarrhea is bloody and does not go away, or if the dog has other symptoms. In addition, after about 7 years of life, it is recommended that the dog undergoes an annual veterinary check-up, in which at least one blood test is performed. It is possible to detect diseases in early stages, susceptible to producing vomiting and diarrhea.

Dog vomiting yellow and diarrhea

One dog vomiting yellow and diarrhea requires urgent veterinary attention. This situation means that the dog has been vomiting previously, so the contents of the stomach are empty and therefore vomits bile fluid. Any dog ​​vomiting yellow means it is vomiting bile. The causes that cause this situation are diverse and can range from an infectious disease to a severe stressful situation or a food allergy. In any case, most likely the animal will become dehydrated and need urgent professional assistance.

When yellow vomiting is accompanied by diarrhea, the most common causes are usually a intoxication or an acute infectious enteritis. This usually occurs in unvaccinated dogs, while the former can affect dogs of all ages and usually manifests itself in a way that the dog vomits white or yellow foam and the feces are liquid.

Puppy vomiting and diarrhea

Finally, in this section we consider the particular situation of the puppies, because special vulnerability. The causes that cause gastrointestinal disturbances are basically the same that explain why an adult dog vomits and has diarrhea. The peculiarity is that puppies, especially the younger ones, can dehydrate easily and also due to the immaturity of the immune system, they are more prone to diseases and parasites generating more serious damage in puppies than in an adult dog.

It is, therefore, necessary to be meticulous with the fulfillment of the deworming and vaccination schedule, as well as the safety measures. In this case, when vomiting and diarrhea occur, you should contact your veterinarian, especially when blood appears in these fluids which may indicate the presence of canine parvovirus, a viral disease. potentially deadly characterized by vomiting and bloody diarrhea.

Dog with diarrhea and vomiting: home remedies

In some cases, and always after receiving the veterinarian's approval, you can choose to offer the animal home remedies that complement the medical treatment. In addition to the fasting mentioned above, you can give your dog peppermint tea as it has digestive and diuretic properties. Ginger tea is another excellent home remedy for dogs with diarrhea and vomiting. For more detailed information, check out these PeritoAnimal articles:

  • Home remedies for dogs with vomiting;
  • Home remedies for dog diarrhea.

Dog with diarrhea and vomiting: when to take it to the vet

If your dog has diarrhea and vomiting, it is essential that you seek help from a trusted veterinarian in the following situations:

  • Dog with bloody diarrhea and vomiting;
  • When the dog has other symptoms, such as tremor, apathy, loss of appetite, itching, fever, etc.;
  • When the dog continues to vomit and has diarrhea even after 24 hours of fasting;
  • If you suspect that the causes of diarrhea and vomiting may be poisoning or severe intoxication.

This article is for information purposes only, at PeritoAnimal.com.br we are not able to prescribe veterinary treatments or perform any type of diagnosis. We suggest that you take your pet to the veterinarian in case it has any type of condition or discomfort.

If you want to read more articles similar to Dog with diarrhea and vomiting: what can it be?, we recommend that you enter our Other health problems section.