Why Does My Dog Smell So Bad? 11 Reasons & How to Fix Dog Odor

Does your dog stink? Fear not, pet parent, in this blog, we’ll learn about 11 smells that could indicate your pup needs a helping hand.

As a pet parent, it is imperative that you’re aware of your pup’s wellbeing; what healthy dogs look like, sound like… And, even what they smell like! 

16 min read·Updated: Dec 16, 2024
Why Does My Dog Smell So Bad? 11 Reasons & How to Fix Dog Odor

Bad smells are hard to ignore, and none of us want to be around an unpleasant stench – especially when it’s coming from our dog! But what should you do if your furry friend is the source of that foul odor?

There are many reasons your dog smells bad, but your veterinarian can help you discover the cause. In fact, some dog health problems have certain types of scents and odors associated with them.

Let’s examine some of the common reasons that answer “why does my dog smell so bad” and what you can do to keep them fresh and healthy.

Types of Dog Odors

Dogs can have a variety of distinct smells that can sometimes puzzle pet parents. Let’s explore the common types of dog odors you might encounter:

  1. Skin Odor: A dog’s skin can produce a natural, musky scent, especially when wet. However, when there’s an underlying issue like allergies, infections, or seborrhea, this smell can intensify and become unpleasant.
  2. Ear Odor: Healthy dog ears usually have little to no odor. But if you detect a foul, musty, or even yeasty smell, it could indicate an ear infection caused by a build-up of bacteria or yeast. Regular ear cleaning and check-ups can help prevent this.
  3. Mouth Odor: Bad breath is a common complaint among dog owners, and it’s usually due to dental issues or digestive problems. Sometimes, a dog’s breath can carry a distinct scent, such as a fishy odor, which could signal dental disease or gastrointestinal issues. 
  4. Paw Odor: Dog paws often emit a corn chip-like smell, which is usually caused by the presence of natural bacteria and yeast. This distinctive “Fritos” scent is normal in small amounts, but an intense odor may suggest an infection.
  5. Distinct Scent Profiles: Sometimes, dogs might smell like specific, unusual things such as fish, rotten food, cheese, poop, or even sweet and fruity. These distinct smells can point to various causes.

Understanding the different types of dog odors can help you pinpoint the potential cause and take the right steps to keep your furry friend smelling fresh and healthy.

Why Does My Dog Smell So Bad?

Bad dog smells can have a range of causes, from simple behavioral habits like rolling in poop or raiding the garbage to issues with hygiene and grooming. However, persistent or unusual odors can sometimes signal underlying health problems that need attention. Understanding these potential causes can help you keep your pup smelling fresh and healthy.

1. Anal Gland Issues

Sometimes referred to amongst puppy parents as ‘fish butt’, your dog’s anus can produce an unpleasant odor – and it isn’t caused by your pup passing gas

Every dog has two glands on either side of their anus that produce a fishy-smelling fluid. The anal glands are normally released when a bowel movement takes place, but they can also be released in times of fear or excitement. Why does this happen, you may ask? Well, some scientists believe that it could be another way of marking their scent, just like urine marking. 

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A healthy anal gland can have a distinct smell, which is completely normal! However, there are also several medical issues that can affect your dog’s anal glands, ranging from infection to cancer, which can all contribute to persistent odor and other symptoms, such as chewing, licking, butt scooting, and discharge.

Just like us humans, your dog may sometimes suffer from an upset stomach, which can lead to loose stools and also result in your pup not being able to release their anal gland fluid naturally. 

If you’re concerned about your dog’s anal glands, schedule an appointment with your veterinarian for evaluation. Some dogs never have issues, but others may need to have them manually expressed to prevent problems and excess odor.  

Also read: Why Does My Dog’s Farts Smell Like Rotten Eggs?

A Golden Retriever lying on its back with a big smile, showing its teeth, on a light-colored wooden floor, expressing joy and playfulness.

2. Dental Problems

When it comes to your pup’s dental hygiene, keeping on top of their oral health is crucial. While some level of “dog breath” is normal, if your dog’s breath is becoming unusually foul, it’s time to take a closer look inside their mouth.

Bad breath, or halitosis, is often due to an accumulation of bacteria, plaque, and tartar in the mouth. Not only can this cause bad breath, it can lead to periodontal disease, infection, and tooth loss. When oral bacteria feed on food particles, they release volatile sulfur compounds (VSCs)—the main culprits behind that unpleasant odor. These compounds produce a characteristic “rotten egg” or pungent smell, which can worsen with poor dental hygiene.

To check if your dog’s dental health could be the cause:

  1. Inspect the Gums: Healthy gums should be bubblegum pink and should briefly turn white when pressed, returning to pink within seconds. If the gums are swollen, red, or bleeding, this could indicate gingivitis or periodontal disease.
    Tip: Some dogs naturally have black or brown pigmentation on their gums or tongue, which is completely normal. Additionally, if your dog’s gums are white, blue, or pale, this could indicate a more serious problem such as anemia or heart disease. 
  2. Examine the Teeth: Your dog’s teeth should be white or a light cream color. Be on the lookout for discolored, cracked, or broken teeth, as well as any thick tartar buildup. Tartar harbors bacteria and can lead to infections, which, if left untreated, contribute to bad breath and other serious dental issues.
  3. Inspect the Mouth: Check for any masses or growths on your dog’s gums, foreign objects such as sticks which could become stuck on the roof of their mouth, and any oral ulcers, which could be associated with conditions such as kidney disease

Regular dental cleanings by your veterinarian under anesthesia, at least once a year, are essential. These visits not only help keep your dog’s teeth sparkling clean but also allow your vet to detect and address issues like infections, loose teeth, or abscesses early on, preventing them from turning into larger (and more expensive) problems. It is also important to brush your dog’s teeth daily at home, and consider other components of an at home dental care routine, such as dental chews, water additives, and more.

3. Skin Infections

If you notice your dog’s skin smells unpleasant, cheesy, or sweet, there may be an underlying issue like a skin infection or an abscess. Common signs like itching, biting, hair loss, pustules (pimples), scabs, crusts, or a greasy-looking coat alongside smelly skin are cause for concern, and you should take your pup to the veterinarian as soon as possible.  

Abscesses can create quite an unpleasant smell. These pockets of pus build up under the skin, originating from an infection, a wound, or a bite from another animal or insect. Abscesses can cause extreme discomfort and irritation. They may also trigger a fever, lack of appetite, or lower energy levels. Sometimes abscesses can rupture, which will produce an awful smell that you won’t be able to miss. 

If you have a dog that has a thick, full coat, like German Shepherds or Akitas, abscesses can grow large and undetected by the cover of long hair. As long as you visit your veterinarian and have them treat it, your pup should be able to make a full recovery. 

4. Ear Infections

If your dog’s ears smell like old cheese or a musty basement, it could be a sign of an ear infection. Dogs with floppy ears, like Cocker Spaniels or Basset Hounds, are particularly prone to ear infections because their ears trap moisture and dirt, creating a perfect breeding ground for yeast and bacteria. Ear infections are also a common occurrence in dogs with allergies. 

An ear infection can cause symptoms like head shaking, scratching at the ears, redness, debris or discharge, and a noticeable odor. It’s important to regularly check your dog’s ears for any signs of redness, swelling, or debris. Gently cleaning your pup’s ears as part of a routine grooming schedule can help prevent infections from developing.

If your dog’s ear odor persists or they seem uncomfortable, it’s best to book a vet appointment. Left untreated, ear infections can lead to pain and even hearing loss.

5. Yeast Overgrowth

Another common culprit behind a smelly dog is yeast. Yeast thrives in warm, moist areas like your dog’s ears, paws, and folds of skin. A mild, yeasty scent is normal, but if it becomes strong and unpleasant – think of the smell of stale bread or musty socks – it’s time to take action.

Yeast infections can cause intense itching, redness, and thickened skin in affected areas. Your veterinarian can help by prescribing antifungal medications, special shampoos, or wipes to manage the infection. Maintaining good hygiene and regularly drying areas like paws and skin folds can help keep yeast overgrowth in check.

6. Diabetes

If your dog’s breath smells unusually sweet or like acetone (nail polish remover), it could indicate diabetes. This happens when blood sugar levels are high, and the body starts breaking down fat for energy, leading to the production of ketones. A sweet or fruity odor in your dog’s breath is a classic sign of diabetic ketoacidosis. This is a serious complication that requires urgent veterinary care.

Other more common symptoms of diabetes include:

  • Excessive thirst
  • Frequent urination
  • Weight loss despite a normal or increased appetite
  • Lethargy

If you suspect your dog has diabetes, consult your veterinarian for blood tests and a treatment plan as soon as possible.

7. Urinary Tract Infections

Urinary tract infections (UTIs) can also make your dog smell less than fresh. A UTI might cause your dog’s urine to have a strong, foul odor, and they may urinate more frequently or even have accidents in the house. In some cases, a UTI can lead to blood in the urine or visible discomfort when urinating.

If you notice these signs, it’s crucial to see your vet. They’ll likely run a urinalysis to confirm the infection and prescribe antibiotics to treat it. Untreated UTIs can lead to more serious issues, like kidney infections or bladder stones.

8. Digestive Issues (Gas, Flatulence)

Let’s be honest, dogs can sometimes clear a room with their farts! Occasional flatulence is normal, but excessive gas might indicate digestive issues. Causes can range from eating something they shouldn’t have to food intolerances, poor-quality diets, or gastrointestinal problems.

If your dog’s gas is persistent and smells particularly foul, it’s worth discussing their diet with your vet. Switching to a high-quality, easily digestible food can often help alleviate excessive flatulence. Just remember, sudden changes to their diet can make gas worse, so transition slowly!

A brown dog wearing an orange collar is happily rolling on its back in a grassy yard on a sunny day, enjoying a playful moment.

9. Rolling in Poop

One of the most unpleasant habits some dogs have is rolling in poop (or other smelly things like dead animals). As gross as it sounds to us humans, dogs may do this instinctively to mask their scent or communicate with other dogs. Unfortunately, it leaves them smelling absolutely awful.

If your dog enjoys rolling in the stinkiest stuff it can find, regular baths and monitoring them during walks or yard time can help avoid this smelly behavior. Consider using a dog-safe shampoo with deodorizing properties to keep them fresh after any misadventures!

10. Eating Garbage

Dogs are notorious scavengers, and a trash-digging dog can end up with more than just a bellyache – it can leave them with terrible breath or even a whole-body funk. Consuming spoiled food can cause bacterial overgrowth in their gut, leading to bad breath, flatulence, and gastrointestinal upset like vomiting and diarrhea.

Preventing access to garbage is crucial, especially since ingesting certain foods or objects can be dangerous. Keep your trash securely stored away and watch your dog closely during walks or outdoor play.

11. Poor Grooming Habits

Some dogs are naturally more fastidious groomers than others. If your dog doesn’t groom themselves regularly or has mobility issues, they might develop a bad odor due to the buildup of oils, dirt, and bacteria in their fur.

Regular grooming sessions, including brushing and bathing, are key to keeping your dog’s coat and skin healthy. For dogs who can’t reach certain areas or those with long coats that tangle easily, professional grooming can make a big difference in keeping them smelling and feeling fresh.

How to Deal With Dog Stink

Keeping your dog smelling fresh isn’t just about masking odors – it’s about maintaining their overall health. If your dog has persistent or unusual smells, it’s essential to consult a veterinarian to rule out any underlying medical conditions. 

Once you’ve ensured there’s no hidden health issue, there are several ways to help your pup stay stink-free:

Regularly Brush Your Dog’s Teeth

Dental health is key! Brushing your dog’s teeth helps prevent bad breath and reduces the risk of gum disease. If brushing is difficult, consider using other vet-approved dental cleaning options.

Keep Ears Clean and Dry

Dogs’ ears can trap moisture and dirt, leading to infections and unpleasant odors. Clean your dog’s ears regularly with a gentle, vet-approved cleaner, especially after swimming or baths.

Clean Up Dog Poop in Your Yard

Picking up after your dog not only keeps your yard smelling better but also reduces the risk of your dog stepping in it and bringing those smells into your home.

Feed a High-Quality Diet

A complete and balanced diet can support your dog’s skin, coat, digestive health, and is critical for their overall wellbeing. Nutrient-rich food can help minimize odors related to poor digestion or skin issues.

Manage Seasonal Allergies

Allergies can cause skin irritations that may lead to infections and odors. Work with your veterinarian to identify and manage any allergies that might be affecting your dog’s skin and coat health.

Regularly Wipe and Check Paws

Paws often get overlooked, but they can trap dirt, bacteria, and allergens. Regularly wiping your dog’s paws can help reduce that ‘corn chip’ smell and keep their feet clean and healthy.

Support Anal Gland Health

Anal glands can sometimes be the culprit behind strong, fishy smells. A high-fiber diet and regular check-ups can help maintain anal gland health, reducing unpleasant odors.

Veterinary Check-Ups

Regular visits to the vet are essential for maintaining your dog’s overall health and well-being. Routine check-ups help detect and address any underlying issues. This can include infections, dental problems, or allergies, before they become major concerns, ensuring your dog stays fresh and healthy.

Focusing on these key areas can help your dog stay fresh and comfortable while avoiding unwanted odors. Regular grooming, proper nutrition, and routine veterinary care go a long way toward keeping your furry friend smelling its best!

A wet Golden Retriever running through a fountain, splashing water and smiling with excitement, capturing a joyful and energetic moment.

Home Remedies for a Smelly Dog

If you’re looking for simple, at-home solutions to help keep your dog smelling fresh, there are a few home remedies you can try. However, always check with your veterinarian before trying anything new, especially if your dog has sensitive skin or allergies.

Apple Cider Vinegar Rinse

Apple cider vinegar is known for its antimicrobial properties and can help neutralize mild odors. You can mix equal parts of apple cider vinegar and water to create a rinse, which can be gently applied to your dog’s coat (avoiding the eyes and ears) and then rinsed off. This can help reduce any lingering smells and even soothe minor skin irritations.

Coconut Oil as a Topical Treatment

Coconut oil has natural antibacterial and antifungal properties and can be applied to your dog’s coat to help combat minor skin issues. Lightly massaging a small amount into dry or flaky areas can provide some relief and reduce odors caused by skin irritations.

Feeding Your Dog Carrots

Raw carrots are a popular natural treat for dogs. While there’s no direct evidence that they impact your dog’s scent, they are a low-calorie, crunchy snack that can help promote good dental health, potentially reducing bad breath over time.

Baking Soda for Cleaning

If your dog’s bed or favorite lounging spot has developed an odor, sprinkle baking soda over the fabric, let it sit for a while, and then vacuum it up. Baking soda helps to absorb and neutralize odors, making it a handy tool for keeping your dog’s environment fresh.

While these remedies can help with minor odors, they shouldn’t replace regular grooming or a visit to the vet if your dog’s smell persists. Persistent odors can indicate an underlying health issue that needs proper attention. Always prioritize your dog’s health and comfort by consulting your vet for the best advice!

Final Thoughts on Why Does My Dog Smell So Bad

Any horrible odor coming from your pup may be a sign that something isn’t right. Your vet will be able to tell what is wrong with your pup through these bad aromas and pinpoint the cause. As a puppy parent, your job is to try to keep your fur baby healthy. So, as soon as you notice any of the above smells, seek out the advice of your vet ASAP. 

Understanding the different types of dog odors can help you pinpoint the potential cause and take the right steps to keep your furry friend smelling fresh and healthy.

Sources

https://www.vet.cornell.edu/departments-centers-and-institutes/riney-canine-health-center/canine-health-information/periodontal-disease

https://veterinarypartner.vin.com/default.aspx?pid=19239&id=9759085

https://vcahospitals.com/know-your-pet/halitosis-in-dogs

https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4952662

https://veterinarypartner.vin.com/default.aspx?pid=19239&catId=254091&id=4952523#:~:text=A%20coat%20that%20is%20not,may%20have%20a%20musty%20odor.

https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4951452

https://www.akc.org/expert-advice/health/dog-ear-infections/

https://www.akc.org/expert-advice/vets-corner/anal-gland-disease-in-dogs/

Becca TriggB
Written by

Becca Trigg

Becca Trigg is a content creator and pet-industry writer, with over 5 years of experience at PetLab Co. She is an all round animal lover, with a keen interest in canine joint health, dental hygiene and nutrition. When she’s not typing away in the office, she can be found sitting in a country pub, growing chillies or cuddling up with her family dog Maggie, a chocolate Labrador.

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The information contained within this site is not intended as a substitute for professional medical or veterinary advice. PetLab Co. is not intended to diagnose, treat, cure or prevent any disease. If your pet has, or you suspect your pet has any medical condition, you are urged to consult your veterinarian. Medical conditions can only be diagnosed by a licensed veterinarian. These statements have not been evaluated by the Food and Drug Administration. Results May Vary. Not intended for human consumption. Please consult your veterinarian regarding any change in treatment or supplementation.
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