Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How to Get Rid of Fishy Smell From Your Dog: 6 Vet-Verified Reasons & Tips

male dog owner covering his nose because his dog smells bad

A dog that smells fishy is considered unusual, and a fishy smell usually comes from your dog’s mouth, skin, ears, or perianal or genital area. Certain foods or poor hygiene could also leave your dog with a fishy odor that results in a foul smell. The first step to get rid of the fishy smell from your dog is understanding where it originates.

If you have noticed that your dog has a fishy odor, you should take them for a checkup at the veterinarian to rule out a health condition that can be causing a fishy odor from your dog’s body.

We have compiled a list of easy methods you can use to get rid of your dog’s fishy smell.

Dogster divider_v2_NEW_MAY_24_

How to Get Rid of Fishy Smell From Your Dog

1. Take Your Dog to the Vet

If you notice a fishy smell from your dog, the first step is to take them to the vet. The fishy smell is often caused by a health problem like a dental issue, impacted anal glands, or skin and ear infections. Your veterinarian is the best person to determine if your dog has a health issue and get you started on the appropriate treatment.

One of the most common causes of a fishy smell in dogs is an anal gland issue. The anal glands, located on both sides of the anus, contain a smelly liquid that aids in scent-marking and communication. When everything’s working normally, these glands get expressed when your dog poops. However, if the glands don’t express fully, the smelly fluid can build up and leak out.

Your vet can easily check your dog to determine the root cause of the problem and establish a treatment plan to help reduce the fishy smell.

Sad hispanic woman looking upset while caring for her aged ill border collie dog at the veterinary clinic
Image Credit: antoniodiaz, Shutterstock

2. Unblock Anal Sacs

Impacted anal glands or anal sacs can lead to a fishy odor near your dog’s butt. Unless your vet has instructed you on how to empty your dog’s anal glands, the best option is to take your dog to a veterinarian to confirm that the anal sacs are impacted (and not infected or developed an abscess) and help with the blockage through an anal gland expression. If the anal glands are infected, a veterinarian will prescribe a treatment to help with the infection.

Anal gland problems seem to be more common in small dog breeds or overweight dogs, and they will need to be manually emptied as the secretions are causing the fishy odor.

healthy vs blocked anal sacs glands
You are free to use this image but we do require you to link back to Dogster.com for credit.

3. Dental Hygiene

A fishy odor emitting from your dog’s mouth can be very unpleasant, especially when they pant or breathe close to your face. Certain dental problems such as a buildup of tartar and periodontal disease can cause halitosis. Certain mouth injuries such as a broken tooth, a foreign body, or  injuries to your dogs’ gums can cause a fishy odor from bacterial growth.

Take care of your dogs’ teeth by using an enzymatic, dog-safe toothpaste recommended by a veterinarian to clean your dogs’ teeth. Your dog’s teeth and mouth should always be assessed by your veterinarian for any issues that can be causing the fishy smell.

In some cases, a veterinarian will recommend oral treatment such as dental scale & polish, tooth extraction, and/or prescribe an antibiotic to help fight off any infections in your dog’s mouth causing bad breath.

brushing dog teeth
Image Credit: DWhiteeye, Shutterstock

4. Treatment of UTI Infections

Fishy-smelling urine can be caused by a urinary tract infection (UTI) from bacterial overgrowth. Your dog’s veterinarian will request a urinalysis from a pee sample and if your dog is found to have a UTI, then the veterinarian will prescribe the right treatment. In the meantime, you will need to bathe your dog and pay special attention to their hind legs and stomach when shampooing, as some of the fishy urine might be stuck on their fur.

dog pee on wooden floor
Image Credit: New Africa, Shutterstock

5. Check their skin and ears

Your dog may have a primary skin condition such as an allergy which can, in some cases, cause a secondary bacterial or yeast infection. Seborrhea is another problem that will cause a fishy odor from your dog’s fur or ears. These conditions require a diagnosis and a treatment plan which often includes a medicated shampoo.


6. Dietary Changes

If your dog’s food contains fish-based ingredients, it can cause your dog’s breath to smell fishy after they have eaten. The fishy food can also get caught around your mouth and dry, causing a foul-smelling odor. If your dog’s diet is the source of the fishy odor and it’s causing you trouble, speak to your dog’s veterinarian about changing their diet to one that doesn’t contain fish as the main ingredient.

divider dog paws 2 oct 2024

Final Thoughts

A fishy smell from your dog’s body or breath is unpleasant, and it is not normal on most occasions. The fishy smell can be caused by an underlying skin health issue or dental disease and even problems with your dog’s urinary health.

A fishy smell can be simple to solve if it is caused by your dog’s diet, but certain health issues will require treatment from a veterinarian after examination to determine what is causing your dog’s fishy smell.


Featured Image Credit: san4ezz, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

What Is the Flat-Coated Retriever Society of America? 2025 Facts

Flat-Coated Retrievers are an intelligent breed of retriever, known for their joyful, fun personalities. Dr. Nancy Laughton, an expert on the breed calls...

How Much Protein Do Senior Dogs Need? Facts & FAQs

Providing proper nutrition to senior dogs is not as straightforward as it might seem. For starters, different breeds have different nutritional needs. Secondly,...

Can I Put Antibiotic Ointment on a Dog? Vet-Approved Facts & Guidelines

Dogs can scrape their legs and feet, get minor cuts on their bodies, and even develop rashes from rolling around on the carpet...

Know Your Pet DNA by Ancestry Review 2025: Our Experience Building Ragz’ Family Tree

If you’re looking for a better way to get to know your dog, the Know Your Pet DNA kit by Ancestry can help....

More related

Phantom Goldendoodle: Info, Pictures, Origin & History

You’re probably familiar with the Goldendoodle, one of the most well-known hybrids or “designer” dogs. A Phantom Goldendoodle may sound haunted, but they’re...

9 Best Dog Water Bottles in 2025 – Reviews & Top Picks

You wouldn’t head out for a hike without ensuring you have enough snacks and water to get you through. The same rule applies...

How Often Should I Bathe My Shih Tzu? Vet-Approved Advice

Most dogs don’t require bathing that often. However, the Shih Tzu is an exception to this rule. They need bathing at least every...

Dr. Marty Dog Food vs The Farmer’s Dog (2025 Comparison): Pros, Cons & What to Choose

Pet food has come a long way, with many brands, options, and ingredients claiming to be this or that. Pet food manufacturers go...

Keep reading

4Health vs Blue Buffalo Dog Food: 2025 Comparison, Pros & Cons

Dogs are like our babies. We want them to have a long, healthy life. When we are choosing dog food, ingredients are one of our biggest concerns. What are the main ingredients, and what about fillers? Does it have preservatives?...

Dogster_Dog Food 4health vs Blue Buffalo

Can I Claim Dog Food on My Taxes in 2025? Pet-Related Deductions Guide

Tax season is never fun. We always hope there are things we can claim when filing. Surprisingly enough, there are several cases where the cost of your dog’s food may be tax-deductible. Usually, pet-related expenses are considered personal expenses, so...

woman computing taxes with her dog

10 Best Low-Calorie Dog Foods in 2025 – Reviews & Top Picks

If your dog recently stepped on the scale and the number was a bit high, you know it’s time to make some changes. It’s not uncommon to see a chubby animal hobbling around a park or sidewalk these days. In...

Samoyed eating

Carna4 vs Orijen Dog Food 2025 Comparison, Pros & Cons

Dog food can be quite an investment, so it’s important to know you’re choosing the right food for your beloved canine companion. The stakes for premium dog foods are even higher because the price tag can hurt your wallet. Orijen...

Dogster_Dog Food Carna4 VS Orijen

Pure Balance vs Blue Buffalo Dog Food: Our 2025 Comparison

The dog food aisle can be a bit overwhelming when you’re faced with brand after brand claiming to offer the best nutrition. You want the best for your pet, so where do you start when choosing the right dog food?...

Dogster_Dog Food Pure Balance VS Blue Buffalo

Can Dogs Eat Boba? Vet-Verified Facts & FAQ

Cool and refreshing with fun pops of tapioca starch, bubble tea originated in Taiwan in the 1980s. The tea beverage was introduced to America in Taiwanese shops on the California coast, but now has traveled all across the country where...

Can Dogs Eat Boba

12 Best Moist Dog Foods in 2025 – Reviews & Top Picks

Becoming a dog parent comes with a lot of responsibility, and one of the top priorities is your dog’s diet. Naturally, we want the best for our furry friends and provide them with a well-balanced, nutritious and delicious meal to...

West Highland White Terrier dog at home eating

Nom Nom vs. The Farmer’s Dog Freshly Made Dog Food: 2025 Comparison

If you’ve decided that your dog needs to eat only the highest-quality food (and you’re willing to pay whatever it takes to make sure they get it), you might have already come across Nom Nom and The Farmer’s Dog. These...

Dogster_Dog Food Nom Nom VS The Farmer_s Dog