Your Dog’s Breath Smells Like Dead Animal? Here’s Why!

Are you also sick of the stench coming from your dog’s mouth? Are you also unable to sit with your four-legged companion because of the dead animal-like smell that fills your nostrils? Worry not, for this is a common problem amongst dogs.

In America, almost 84% of pet owners complain that their dog’s breath gives off an awful odor.

A dog’s rancid, death-like breath can be due to multiple reasons. Most adult dogs, or dogs older than three years of age are a victim of Halitosis, and every 8 out of 10 dogs encounter this problem every year.

The reasons that result in your dog’s breath smelling like a corpse can include dental problems, kidney or lung problems, and diabetes. A substandard diet can also add to the problem, and the other times, dogs might consume the excrement of other animals or even chew on putrid food. In such cases, rush to the nearest vet immediately.

To know more about your dog’s breath and how to fix it, stay tuned.

Dead Animal Smell From Your Dog’s Mouth – Causes

Dog’s breath smells like dead animal – causes and how to fix it

Below are the reasons due to which your dog’s breath might smell like that of a dead animal:

Dental Problems

Dental diseases are widely spread among dogs and are among the most common reasons for canine foul breath. It has been identified as a major cause for malodorous breath, not only in dogs but in pups too. After 2 years, almost 78% of dogs encounter cavity, tooth decay, and other dental diseases worldwide.

The main cause of dental problems followed by a corpse-like breath is the bacteria, saliva, and chunks of food that remain unremoved and cause plaque to manifest in the lower or inner part of your dog’s mouth. This manifestation leads to severe gum diseases and a corpse-like smelly breath.

Besides bad breath, gum diseases can also cause your dog to be in continuous tooth pain. If not treated in time, this problem can worsen and cause teeth loss too. That’s because teeth are embedded in the jaw with ligaments, and gum disease severely affects ligaments.

To avoid this, owners must take their dogs to a vet for dental care regularly. Neglecting proper care can result in the bad health of your dog.

Health Problems

A canine’s bad breath might be an indication of illness. Unnoticed sickness is one major cause of foul odor breath among dogs. Your dog might be facing different ailments like diabetes, lung, or kidney problems.

In addition to smelling like a dead animal, you can anticipate your dog’s breath to be rotten and sometimes like that of Uremic fetor.

Let’s have a look at some of the problems your dog might be facing.


Diabetes can be a prime cause of breath smelling like a dead animal in your dog. If so, you will notice that your dog smells rather fruity or abnormally sugary, however, not pleasant at all. A mongrel encountering diabetes might drink and urinate more frequently than normal.

Moreover, it will show signs of weight loss, intensified hunger, unusual sleeping hours, and exasperating behavior.

If any of these signs come to your notice or find your dog worn out now and then, rush to your nearest vet and get your dog’s blood and urine checked.

Liver Diseases

Liver problems are not very common in dogs. Only 4% of dogs are diagnosed with liver problems. However, dogs suffering from liver diseases commonly suffer from smelly breath as bad as a dead animal.

Other symptoms of liver problems in dogs include yellow eyes, colorless or white-colored gums, loss of appetite and weight, unusual and frequent vomiting, along a deathly breath odor.

Liver diseases in dogs have proven to be very dangerous and can lead to seizures, coma, or even death if not treated in time. Therefore, if you see any of these symptoms in your dog, take it to the vet immediately and get it checked.

Kidney Problems

A dog having a corpse-like breath is most likely to be a victim of kidney disease. Almost every two out of ten dogs develop kidney problems in their life.

If your dog is undergoing a kidney issue, the smell of its breath would be as foul as that of a dead animal, rotten meat, urine, or feces. Be careful, as constant exposure to such a foul smell can result in nausea.

Another symptom of kidney disease is that your dog will lose appetite and drink and urinate more frequently than usual. If you witness any of these signs, rush to the vet for timely treatment.


Cancer or oral tumor in dogs is very rare. Oral tumor is sporadic but can lead to death. In cancer, the cells inside the dog’s mouth develop at a tremendous rate. This development might cause cancerous growth, and so, the tissues in the mouth grow at an extraordinary speed obstructing the blood from flowing in all directions. This obstruction results in the early death of multiple tissues.

The death of these tissues is the reason for the musty smell coming from a dog’s mouth. This smell is much like that of a dead animal and is pathetically unbearable. Cancer can be deadly if not discovered in its early stages.

However, timely treatment can help prevent a grievous outcome. Therefore, take your dog to the vet for a thorough examination regularly.

Nasty Food Habits

If you are a dog owner, you know that your dog can get weird sometimes. In addition to diseases, its corpse-like breath and sickness can be the translation of its awful activities. Especially if it regularly goes out of the house and has a bad habit of reaching the trash or dead bodies of animals or insects. It can also be the result of desolate consumption.

Typically, dogs are attracted to feline defecation. Especially if you have cats around, your dog is sure to have devoured upon their excretion, and resultantly, it might develop a deathly breath. This is not only absurd but unhygienic too.

Dogs that consume the expurgation of their own or other animals suffer a condition called Coprophagia, in which the dog is a victim of Halitosis.

Due to Coprophagia, the dog owners may also feel slight light-headedness or sickness in close interaction with dogs. Regular vet visits are not only important for your dog’s health but also for your well-being. Therefore, upon noticing your dog coming in contact with any of the above symptoms, rush to a vet, and get it checked.

What Should I Do If My Dog’s Breath Smells Like A Dead Animal?

Generally, some simple and easy steps are all that you need to take to get rid of that carcass-like stench coming from your dog’s mouth. However, you must get your dog first checked by a vet to make sure it is not diseased.

Dog's breath smells like dead animal

Below are devised ways that can be implied to make your dog smell fresh and good.

Brush Teeth Regularly

Regular brushing improves your pooch’s hygiene and also helps remove plaque from its teeth. Improper cleanliness and dirt can also result in foul breath. Brushing your dog’s teeth will help eradicate the stench leaving him with healthy teeth and strong gums.

Dogs have certain abilities that are just like human beings. For instance, you will notice that in some time, your dog will be trained and will enjoy teeth brushing.

However, refrain from using human-specific toothpaste as they have chemical properties that can upset a dog’s stomach. It is recommended to use toothpaste formulated especially for dogs.

Try A Mouthwash

The mouthwashes used for dogs are different from the ones made for humans’ use. Purchase the one that is effective at fighting tartar and Halitosis among dogs. There are special mouthwashes in stores that your dog will take in without reluctance and hesitation.

Add the liquid to your pooch’s water bowl to prevent the sting coming from its mouth.

Present Your Dog With Some Dental Treats

Dental treats help in the betterment of your dog’s oral health. The activity of chewing keeps a dog active and healthy. Bring your dog vet-approved dental treats that he can chew all day long. It prevents plaque growth and helps eradicate tartar. It also plays the role of a dog’s breath freshener.

Dogs of different ages require different sizes and quantities of dental treats for a fresh breath. Make sure that you select the right size for your dog. It will not only improve its dental health but also help it get rid of bad breath.


In contrast to larger breeds, pups of smaller breeds are more exposed to gum diseases and require better dental consideration. Therefore, begin brushing your pup’s teeth as soon as he develops felines so that he becomes habitual of brushing by the time it thrives as a dog.

Health is wealth, and a healthy pooch is less exposed to ailments. Plan a proper diet plan for your dog and visit the vet at least twice a month. Regular and frequent check-ups can help avoid many problems.

You can also use oral health products for the health of your puppy or dog. Provide your dog with chew toys, dental chews, dog-specified tubes of toothpaste, and water supplements. Make sure to get these additives approved by your vet before adding them to your dog’s diet.

Start taking care of your dog’s oral health from today as prevention is always better than cure. No more feel disgusted by your dear dog. Happy reading!