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Puppy Breath: Vet-Approved Causes & Concerns Explained

Annaliese Morgan

By Annaliese Morgan

shiba inu puppy dog lying on the floor

Vet approved

Dr. Amanda Charles Photo

Reviewed & Fact-Checked By

Dr. Amanda Charles

Veterinarian, BVSc GPCert (Derm) MRCVS

The information is current and up-to-date in accordance with the latest veterinarian research.

Learn more »

In the same way that newborn babies have a new baby smell, so do puppies; in particular, their breath. Puppy breath has a distinctly soft and sweet odor that some people love and find adorable while others dislike it. The phenomenon of puppy breath is a completely normal occurrence and nothing to be concerned about unless you notice a change in its smell. Although not every puppy will have puppy breath, most do.

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What Is Puppy Breath?

“Puppy breath” is a term given to the characteristic smell of a puppy’s breath. It is present when they are born and lasts for a few months. It can be noticed if you smell near the puppy’s mouth, especially when they yawn or when they breathe out.

Estrela Mountain Dog puppy
Image Credit: ThomasLENNE_Shutterstock

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What Are the Causes of Puppy Breath?

The exact cause of puppy breath is somewhat of a mystery to veterinarians, but it is thought to be due to a combination of a few factors:

  • Your puppy has new and clean teeth not yet tarnished with food or dental problems. A puppy will begin teething around 3–6 weeks old when their sharp, needle-like baby teeth begin to come in.
  • Drinking their mother’s milk, which is a clean source of nutrition.
  • Certain bacteria are naturally present in the mouth at that age.
  • The lack of more potent or unpleasant foods which adult dogs readily consume.
  • Some veterinarians believe gas from a puppy’s digestive system also plays a contributory role in the creation of the smell.

What Does Puppy Breath Smell Like?

Unlike an adult dog’s breath which can be stinky from the various foods and bacteria present, puppy breath is quite the opposite. It is almost sweet and can be most likened to the smell of the mother’s milk. Although most puppies do have this distinctive smell, there are a few pups that don’t, and this, too, in most cases, is normal. If your puppy is in the minority without puppy breath, it is likely because of your puppy’s individual habits, but it can sometimes be because there is an underlying health issue.

teacup bichon frise puppy
Image Credit: Vladimir Nenezic, Shutterstock

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When Should I Worry About My Puppy’s Breath?

The presence of puppy breath is expected, normal, and nothing to be concerned or worried about. Yet, if you notice something not right and outside their normal smell, such as a bad odor or an increased breathing rate, then contact your veterinarian for advice and a check-up.

Puppies and young dogs will often find and consume yucky or strong-smelling food items they think are wonderful but could have gone bad. In these cases, the odd or bad smell should subside after a few hours as digestion of the offending food takes place. If the bad smell is still present a day or two later, check in with your veterinarian.

Certain health problems can sour puppy breath easily, and examples of abnormal odors would be those smelling similar to ammonia or having a metal-type odor (the latter is perhaps due to blood in the mouth from new teeth).

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How Do I Care for a Puppy With Puppy Breath?

Other than acting on any new or sudden changes in the smell of your pup’s breath, there is little to do in the way of caring for your puppy’s breath specifically. However, introducing good dental hygiene as early and as soon as possible is a good idea and important to maintain healthy teeth and fresh breath.

Dental (periodontal) disease is exceptionally common and can become problematic quickly. It is estimated around 80% of dogs 3 years and older have some form of dental disease. Prevention is the key and definitely reduces the chance of your dog needing treatment further down the line. It’s harder (and more expensive) to correct dental problems than it is to prevent them.

Signs of Dental Problems to Look Out:
  • Bad or offensive-smelling breath
  • Retained teeth, meaning the baby tooth is still present alongside the adult ones
  • Redness or a red line on the gum line
  • Receded gums
  • Broken, cracked, flattened, or loose teeth
  • Discolored and stained teeth
  • Teeth covered in tartar
  • Not eating or having difficulty eating
  • Crying, growling, or generally vocal when eating
  • Reduced appetite
  • Drooling and excessive salivation
  • Dropping food from the mouth
  • Signs of pain or any discomfort
  • Pain in or around the mouth
  • Bleeding from the mouth
  • Swelling in the areas surrounding the mouth, jaw, and cheekbones

Beginning a dental regime as soon as possible enables your dog to become used to simple acts such as opening their mouth and rubbing their gums. In turn, these acts can be gradually increased to brushing. Starting early reduces any issues and fear your puppy may have around dental care making it easier and non-stressful as they get older. It is also helpful for you as well as some pet parents find it tricky to fit consistent daily dental care into their routines later in their dog’s life. Starting from the get-go is a blessing both for you and your puppy.

Brushing your dog’s teeth daily with dog toothpaste (do not use human toothpaste) is the gold standard. There are many other options to consider though, including dental toys, dental chews, dental sticks, mouthwashes, dental diets, and gels. If you are unsure what to do or how to use any of these, have a discussion with your veterinarian and together you will be able to find the right combination for you and your dog.

Brown puppy sad
Image Credit: Skitterphoto, Pexels

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Frequently Asked Questions (FAQs)

What Age Does Puppy Breath Go Away?

Puppy breath will naturally go away usually when they are around 3–6 months old, coinciding with their adult teeth coming through. It will disappear entirely when your puppy reaches maturity. The maturity age varies depending on the breed and size of your new dog, but it is generally agreed most dogs mature by the time they are 1 year old.

How do you Get Rid of Puppy Breath?

In short, you can’t! It’s a natural occurrence of being a puppy.

Can I Prolong Puppy Breath?

Unfortunately, no, so if you love the smell, enjoy it while it lasts! To prevent bad odors from occurring due to their teeth and gums, follow the previous guidelines for good dental care and consult your veterinarian to action a dental regime and regular check-ups.

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Final Thoughts

Whether you love puppy breath or not, it’s natural, normal, and nothing to be over-attentive about unless you enjoy smelling it, in which case enjoy before it goes away! The takeaway here is to plan and act on a good dental hygiene plan as soon as possible to prevent future bad breath and dental issues.


Featured Image Credit: Molica_an, Shutterstock

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