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 & When Is National Fetch Day? (2025 Update)

If you keep up with pet-related holidays, you’ve probably heard of National Fetch Day. Celebrated on the third Saturday of October every year,...

Istrian Shorthaired Hound Dog Breed: Info, Pictures, Care & More

The Istrian Hound comes in two varieties: the longhaired and the shorthaired. Originally from Croatia, this is a very old breed whose exact...

Can Dogs Eat Nutritional Yeast? Vet-Verified Nutrition Facts & Info

Nutritional yeast is all the rage among health-conscious eaters looking for delicious and nutritious ways to zest up their meals. With its generous...

Is a Samoyed Good With Cats? Vet-Verified Facts, Tips & FAQ

Samoyeds are famous for their gorgeous white fluffy coats and permanent smiles. Due to their origins, they also form strong bonds with their...

More related

Can Golden Retrievers Be Aggressive? Facts & FAQ

Perhaps you’ve had a run-in with an aggressive Golden Retriever or are just curious about the idea. How on earth does one of...

Dogster Photo Contest: Dogs of the Week Winners (August 14, 2025)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

Why Do Dogs Eat Snow? Vet-Approved Explanation & Safety Concerns

If your dog has recently eaten some wintery marshmallow fluff, you don’t need to worry. Dogs have known for a long time that...

15 Amazing Facts About Mini Goldendoodles: Appearance, Traits & More

Mini Goldendoodles are the ultimate toy hybrid. They are a cross between the Golden Retriever and the Toy Poodle, which are two intelligent,...

Keep reading

Can Dogs Eat Cranberries? Vet-Reviewed Nutritional Guide

Cranberries are sweet yet slightly bitter-tasting fruits used in a range of dishes. They mostly consist of water, but they are naturally rich in antioxidants and several vitamins and minerals too. We often enjoy cranberries for breakfast, dessert, or as...

Can Dogs Eat Cranberries

10 Best Vet-Recommended Puppy Foods in 2025 – Reviews & Top Picks

We spend a lot of time thinking about feeding ourselves and our families, and it’s easy—find a recipe, order takeout, or sign up for home delivery, and mostly, eat what tastes good! But how do you pick an all-important food...

Cocker Spaniel puppy eating

10 Best Puppy Foods in Canada in 2025 – Reviews & Top Picks

Congratulations on welcoming home a new puppy. This exciting and fun time in both of your lives may come with a lot of questions, especially if you’re a first-time dog owner. “What should my puppy be eating” needs to be...

labrador retriever puppy eating food from bowl outdoors

Annamaet Dog Food Review 2025: Pros, Cons & Final Verdict

Review Summary With healthy, natural ingredients, great research, and different options to meet your dog’s needs, Annamaet definitely stands out. This premium food company has over thirty years of experience in making dry food, and it has consistently given us...

Dogster_Annamaet Dog Food Review

Can You Return Dog Food to Petco? 2025 Guide & FAQ

Whether you are considering trying out a new dog food from Petco, or you’ve recently had an issue with food you purchased, you may be wondering if the store will accept returns. Dog food can get quite expensive, and if...

Petco pet shop

Vital Essentials Dog Food Review 2025: An Expert’s Breakdown

More and more dog owners are learning about the benefits of a raw food diet for their furry family members. But feeding a raw diet is even harder than it sounds, especially when you consider what it takes to provide...

Vital Essentials Dog Food

PetPlate Dog Food Review 2025: Recalls, Pros & Cons

Review Summary PetPlate hasn’t been around for all that long, but in the few years they have been producing fresh food for dogs, they’ve made a big difference and have created millions of meals that are loved by pups across...

Dogster_PetPlate Dog Food Review

What Meat Is Best for Dogs? Top Types Explained

If you’ve spent time looking at dog foods in the pet store recently, then you know just how many protein options there are on the market these days. It can be overwhelming to know what protein to pick for your...

owner feeding shih tzu with dog food