Difficulty Eating and Drinking in Dogs

Author: Dr. med. vet. Gisa Löwe | Last modified: 17.02.2026
Table of contents

When to visit the vet?

Urgent see a veterinarian within 24 hours

?

RED (urgent) for dysphagia/choking signs, aspiration (Coughing after drinking), excessive salivation, shortness of breath, or rapid dehydration.

Unsure about what’s wrong with your pet? Feel free to use our Symptom Checker for more clarity

Definition

Difficulty eating and drinking in dogs refers to behavioral changes where the dog partially or completely refuses to eat or drink, or experiences visible problems doing so. These symptoms can indicate a variety of health problems, both physical and psychological in origin.

Can Occur with the Following Diseases:

Basics and possible causes

Difficulty eating and drinking in dogs can be caused by many factors, ranging from simple behavioral changes to serious medical issues. Dogs are creatures of habit by nature, and even small changes in their environment or routine can affect their eating and drinking behavior.

A common cause of eating problems is dental issues. Pain, gum inflammation, or broken teeth can make chewing painful and uncomfortable. Oral infections, such as Abscesses, can also lead to Difficulty eating and drinking.

Diseases of the digestive tract such as gastritis, pancreatitis, or Intestinal obstruction can also affect eating behavior. These conditions often lead to Nausea, Vomiting, or Abdominal pain, which make eating unappealing.

Systemic diseases such as kidney or liver conditions can also affect a dog’s appetite. These diseases often lead to a general feeling of malaise, which prevents the dog from eating or drinking.

Psychological causes such as stress, anxiety, or depression can also affect eating and drinking behavior. Changes in the household, such as the loss of a family member or another pet, can cause stress and alter eating behavior.

Poisoning from consuming toxic substances or foods that are harmful to dogs can also lead to eating problems. Symptoms of poisoning can appear quickly and require immediate attention.

Typical accompanying symptoms

  • Weight loss: A dog that does not eat will lose weight over time, which can be visible when the ribs or hip bones become more prominent.

  • Vomiting: A common accompanying symptom of digestive problems or poisoning, often indicating a more serious underlying cause.

  • Excessive salivation: May indicate pain in the mouth or dental problems that make eating uncomfortable.

  • Behavioral changes: A dog that withdraws, appears apathetic, or behaves anxiously could be suffering from stress or Pain.

  • Dehydration: If there are difficulties drinking, the dog can become dehydrated, recognizable by dry mucous membranes, sunken eyes, and reduced skin turgor.

  • Diarrhea: Another sign of digestive problems that often accompanies loss of appetite.

When to see a vet?

A veterinarian should be consulted if the dog does not eat or drink for more than 24 hours, as this can be a sign of a serious illness. Especially in young puppies or older dogs, this can quickly lead to dehydration.

If the problem is accompanied by other symptoms such as Vomiting, Diarrhea, lethargy, or Behavioral changes, an immediate veterinary visit is advisable. These symptoms can indicate serious conditions that require medical treatment.

In cases of obvious Pain, e.g., when touching the mouth or abdomen, or sudden and drastic Behavioral changes, prompt action should also be taken, as these can indicate acute health problems.

Symptom recognition for the pet owner and veterinary diagnostic procedure

Pet owners can recognize Difficulty eating and drinking by closely observing their dog’s behavior. Abnormalities such as refusing food, hesitant chewing, or avoiding the water bowl should be documented. Changes in the dog’s eating habits or activity level are also important indicators.

At the veterinarian’s office, a thorough medical history will first be taken, during which the pet owner will be asked about all observed symptoms, possible environmental changes, and the dog’s eating habits. A physical examination will be performed to rule out obvious problems such as dental or Abdominal pain.

Further diagnostic tests may include blood tests to identify systemic diseases such as kidney or liver problems. X-ray or ultrasound examinations may be necessary to detect structural problems in the digestive tract or signs of Tumors or foreign bodies.

If poisoning is suspected, a toxicological examination may be necessary to determine the presence of toxic substances in the dog’s body. Psychological causes are considered if physical causes have been ruled out.

What the pet owner can do and professional therapy options

If the pet owner notices that their dog has Difficulty eating and drinking, it is important to first allow the dog to rest and avoid stressful environments. A calm and safe place can help reduce the dog’s stress level.

Soft or pureed food can help make eating easier, especially if dental problems are suspected. Adding warm water or broth to food can not only change the texture but also improve the smell and taste, which can stimulate appetite.

It is important to always provide the dog with fresh water and encourage them to drink regularly. At signs of dehydration, such as dry gums or sunken eyes, a veterinarian should be consulted immediately.

The pet owner should avoid Contact with toxic substances or foods that could be harmful and ensure that the dog has not swallowed any potentially dangerous objects.

If the problems persist or worsen, a visit to the veterinarian is essential to determine the exact cause and initiate appropriate treatment. Temporary measures should not be considered a substitute for professional medical advice.

Outlook on current research

Research into Difficulty eating and drinking in dogs is increasingly focusing on the various mechanisms that can lead to this symptom. A significant development is the use of imaging techniques, such as magnetic resonance imaging (MRI) and computed tomography (CT), to identify structural abnormalities in the head and neck region. These technologies enable veterinarians to make accurate diagnoses by providing detailed images of the anatomical area affecting eating and drinking. Such procedures are particularly useful for detecting Tumors, foreign bodies, or inflammatory processes that could present mechanical obstructions.

Another significant advance is the investigation into the role of the central nervous system in controlling eating and drinking behavior. Neuroscientific studies have begun to unravel the complex neural networks that regulate food intake. This research has shown that neurological disorders affecting the brainstem or cranial nerves can have significant effects on a dog’s ability to consume food and water. Such insights are crucial for developing treatments aimed at restoring these neural functions.

Research also examines genetic factors that can lead to Difficulty eating and drinking. Studies in specific dog breeds have identified genetic mutations that lead to congenital malformations affecting the oral and pharyngeal musculature. Such genetic insights could contribute to the long-term development of breeding programs that minimize the risk of such anomalies.

Additionally, behavioral science approaches are being explored to understand how stress and anxiety can influence eating and drinking behavior in dogs. Stress can lead to reduced food intake, which in turn can affect the animal’s health. Behavioral studies aim to develop techniques that help reduce stress-related eating disorders in dogs.

Nutritionists are working to develop special diets that can help dogs with Difficulty eating and drinking. Such diets focus on the consistency and composition of food to facilitate intake. For example, soft or blended foods can be beneficial for dogs with dental problems or dysphagia.

Research in veterinary rehabilitation is also gaining importance. Physiotherapeutic approaches aimed at strengthening the pharyngeal and jaw muscles are increasingly recognized as complementary therapy methods. These approaches can be particularly helpful for dogs with musculoskeletal problems that impair eating and drinking.

Another area of research is the development of technologies for monitoring and analyzing eating and drinking behavior. Innovative devices exist that can monitor a dog’s eating behavior to detect anomalies early. These technologies could play an important role in preventive health monitoring in the future.

Overall, current research presents a multidisciplinary picture that reflects the complexity of this symptom and includes a variety of approaches to treatment and prevention. The further development of these research areas promises better diagnostic and therapeutic options for dogs struggling with Difficulty eating and drinking.

Frequently asked questions

1. What could be the first signs of difficulty eating and drinking in my dog?
Early signs may include the dog refusing food, eating slower than usual, Coughing or gagging while eating or drinking, or spitting out food. Increased salivation or obvious Pain when chewing may also occur.
2. Can difficulty eating and drinking occur suddenly?
Yes, Difficulty eating and drinking can occur both gradually and suddenly. Acute causes could be foreign bodies in the mouth or throat, dental problems, or injuries, while chronic difficulties are often related to long-term health problems.
3. How can I help my dog if he has difficulty eating?
It is important to determine the reason for the difficulties by consulting a veterinarian. In the meantime, soft or pureed food can be offered to facilitate food intake. Raising the food and water bowls can also be helpful for some dogs.
4. Are certain breeds more prone to eating and drinking problems?
Yes, certain breeds are more prone to specific problems. For example, brachycephalic breeds, such as Bulldogs and Pugs, tend to have respiratory diseases due to their skull structure, which can make eating and drinking difficult.
5. Can dental diseases cause difficulty eating and drinking?
Yes, dental diseases are a common cause of Difficulty eating and drinking in dogs. Gum disease, broken teeth, or dental infections can cause Pain and make chewing difficult.
6. When should I take my dog to the vet if he has eating problems?
If the dog shows difficulty eating for more than a day or two, or if other symptoms such as vomiting, diarrhea, weight loss, or lethargy occur, a veterinarian should be consulted.
7. Can stress cause eating and drinking problems in dogs?
Yes, stress can lead to a change in eating and drinking behavior in dogs. New environments, changes in the household, or loud noises can trigger stress that negatively affects appetite.
8. Are there special foods for dogs with eating problems?
Yes, there are special diets developed for dogs with eating problems. These foods are often softer and easier to chew or swallow and may also contain additional nutrients to meet nutritional needs.
9. Can a dog have difficulty drinking without showing eating problems?
Yes, it is possible for a dog to have drinking problems without simultaneous eating problems. Causes could include esophageal diseases, neurological disorders, or Pain in the throat area that makes drinking difficult.
10. Can surgery be necessary to fix eating and drinking problems?
In some cases, surgery may be necessary, especially if structural problems exist, such as Tumors in the oral or pharyngeal area or severe dental problems. The decision for surgery depends on the exact diagnosis and the dog's health condition.