What Causes Weight Loss In Dogs?

What Causes Weight Loss In Dogs?

Rapid or sudden weight loss may be an indicator of a more serious illness

The weight of a dog throughout life will vary depending on his age, breed, the fact of neutering and existing diseases.

However, if you notice that your dog is suddenly losing weight, then this could be a symptom of a serious medical condition.

Each breed has its own standards. Some dogs are denser (for example, Rottweilers), others look like graceful porcelain figurines (for example, whippets). 

Normal dog’s weight is when a dog’s ribs are easily felt with the fingers, but do not protrude through the skin.

The pelvic bones also do not protrude. That is, you can’t see the outline of the ribs and pelvic bones in your dog.

If the ribs are difficult to feel, the dog is overweight. If, on the contrary, they protrude and if the pelvic bones are visible, the dog is underweight.

Usually, weight problems are accompanied by a deterioration in the quality of the coat: it becomes dull and begins to fall out. And the dog itself becomes lethargic or restless.

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What is poor appetite and a sudden weight loss in dogs?

Some of us may not have an appetite. Like this, for no reason. And it’s the same with dogs. If your pet missed yesterday’s dinner or today’s lunch, that’s perfectly fine. Maybe it’s too hot outside, or maybe he’s just not in the mood.

But if the dog does not go to eat food at all for two days or more, this is a serious reason to consult a veterinarian. Today, without delay.

What Causes Weight Loss In Dogs
What Causes Weight Loss In Dogs

 Poor appetite and Sudden weight loss in dogs are not always due to a chronic illness, so take your dog to a veterinarian as soon as possible, who can help identify the cause of the problem and prescribe appropriate treatment.


Weight loss in dogs – IMPORTANT TO KNOW!!!

Dogs feeding many puppies can lose weight because they simply cannot physically eat as much food as necessary to maintain their weight and adequate milk production.

They quickly regain weight after weaning puppies. After weaning the puppies, the worms should be “chased away” two or three times at monthly intervals.

If, despite all efforts, the animal does not gain weight, then it may be lacking in nutrients.

Diseases of the gastrointestinal tract in dogs

Weight loss can be a symptom of one of the many diseases of the gastrointestinal tract that affect the functioning of the stomach and intestines.

Other symptoms to look out for are chronic diarrhea or constipation, vomiting, dehydration, and general lethargy.

If your dog has a gastrointestinal disorder ,a dog may lose his appetite and begin to lose weight, as digesting food makes him uncomfortable.

Chronic renal failure in dogs

Chronic renal failure is a serious and common condition that affects 2–5% of all dogs. With this kidney disease, dogs stop working efficiently and are unable to perform excretory or metabolic functions.

The average age at which this diagnosis is made is six and a half years, which means it is more common in older dogs. Along with losing weight, you may notice lethargy, weakness, vomiting, or diarrhea.

Megaesophagus in dogs

Weight loss is a secondary symptom of a disease called megaesophagus, in which the dog cannot fully digest and absorb food.

In dogs with this condition, the esophagus swells, enlarges, and malfunctions as it is no longer able to efficiently deliver food to the stomach.

Liver disease in dogs

Sudden weight loss is one of the signs of early stage liver disease, along with vomiting, food refusal, and general lethargy.

Exocrine Pancreatic Insufficiency (EPI) in Dogs

Exocrine pancreatic insufficiency is a condition in which a dog cannot efficiently digest food because its pancreas does not produce enough digestive enzymes to keep the body running.

This means that the dog is not getting the nutrients it needs or the energy it needs, and therefore it is losing weight.

This condition is also characterized by chronic diarrhea and increased appetite as the dog tries to make up for the lack of energy by consuming more food.

Diabetes in dogs

Unfortunately, diabetes is a common condition in dogs. With poorly controlled diabetes, the dog loses weight quickly enough.

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Often, diabetes in dogs is diagnosed with a weight loss screening. As a rule, diabetes develops in animals of middle or older age, with low body weight.

If your dog fits this description, it is important to keep his weight stable.

What Causes Weight Loss In Dogs
What Causes Weight Loss In Dogs

Other Issues what cause weight loss in dogs

1.Pain when chewing

The dog may refuse to eat because it hurts to eat. Her tongue or palate may be injured. Or perhaps a toothache.

Ear conditions can also cause pain when the jaw moves.

Carefully examine the pet’s oral cavity: the condition of the teeth and mucous membranes. Check the condition of the auricles for profuse discharge.

2.Inappropriate nutrition and inadequate drinking


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We’ve saved the most popular reason for weight loss for last. In 90% of cases, the dog loses weight due to improper nutrition.

The food she has chosen may not be suitable for a dog. Please note that meat should be the main ingredient in dog food.

If in the first place in the composition of cereals, then here it is, your reason. And one more important point: the feed must be complete and balanced.

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This means that it contains all the vitamins and minerals necessary for your dog, and there is no need to supplement the dog with anything else.

Your dog may not have enough fluid. Because of this, she can regurgitate dry food, and the body will not receive enough energy.

Changing feed, overusing delicacies, supplementing with food from the table, insufficient portions or, conversely, overfeeding – all this can lead to a violation of eating habits and weight problems.

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It is not only the quality of the feed that is important, but also the quality of its storage.

The dog may refuse food because it smells “somehow wrong” or has been in the bowl for a long time.

When buying, carefully check the integrity of the packaging and follow the rules for storing food at home.

We have listed the most common causes of weight loss.

What Causes Weight Loss In Dogs
What Causes Weight Loss In Dogs

There are others: for example, extreme heat on the street, the period of rehabilitation after surgery or a previous illness, taking medications, an inappropriate place for feeding, and others.

In these cases, the weight usually returns to normal as soon as the body recovers. But we strongly recommend that you keep your finger on the pulse and enlist the support of a veterinarian. It is never superfluous!

Weight loss in dogs Final Words

Before visiting your veterinarian, write down the dog’s menu and keep track of the daily amount of food eaten and milk consumed.

If you are feeding a prepared food to your dog, bring the label with you so that the veterinarian can see the composition of the food.

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