What Is Yeast Infection In Dogs?

Causes of Yeast Infection in Dogs | Symptoms of Yeast Infection in Dogs | Diagnosis of Yeast Infection in Dogs | Treatment for Yeast Infection in Dogs | Prevention of Yeast Infection in Dogs | The Best Products to Treat Yeast Infection In Dogs | Conclusion

Yeast infections or yeast dermatitis are prevalent in dogs and can cause itchy, inflamed skin with a strong odor. A yeast infection in a dog usually manifests as a rash or an ear infection. Anywhere on the body, a yeast infection is painful and perhaps indicative of something more serious.

Yeast infection in dogs is a widespread, yet often misunderstood, issue affecting our beloved four-legged friends.

This condition develops when an overgrowth of yeast, specifically a fungus called Malassezia, occurs on a dog’s skin, ears, or paws. Yeast is a naturally occurring organism living on your dog’s skin, but when something disturbs the delicate balance and allows it to multiply, it can lead to a frustrating yeast infection.

As a responsible pet owner, it is essential to recognize the causes, symptoms, diagnosis, treatment, and preventive measures of yeast infection in dogs. Dogs experiencing a yeast infection can be extremely uncomfortable, and the earlier it’s detected and treated, the sooner your canine companion can regain their comfort and overall health.

In this guide, we’ll cover everything you need to know about yeast infection in dogs to ensure that you are well-equipped to handle this common condition and keep your furry friend happy and healthy.

Causes of Yeast Infection in Dogs

To gain a better understanding of yeast infection in dogs, it is crucial to explore the various factors that might trigger this condition. Identifying the underlying causes will not only help you make more informed decisions about your pet’s healthcare but also enable you to implement preventive measures effectively.

Let’s explore the myriad of reasons why a yeast infection in dogs might occur.

1.    Compromised Immune System

A main cause of yeast infection in dogs is a compromised immune system. Dogs suffering from immune-related conditions, those undergoing treatment for diseases, or older dogs with weakened immune responses may face an increased risk of yeast infections. In these situations, their body’s defense mechanisms struggle to maintain the delicate balance of microorganisms on the skin, potentially leading to Malassezia’s overgrowth.

2.    Allergens

Allergic reactions can make dogs more susceptible to yeast infections. Allergens from certain foods, inhalants from the environment (dust mites, mold, pollen), fleas, or substances they may come into contact with, can irritate a dog’s skin. Further, this irritation can disrupt the skin’s natural barrier and potentially distort the balance of microbes, encouraging yeast to multiply and cause an infection.

3.    Hormonal Imbalance

Certain hormonal disorders, like hypothyroidism or excessive production of cortisol (Cushing’s disease), may lead to an overgrowth of yeast on the skin. Besides, alterations in hormones can affect a dog’s skin health and immunity, fostering an environment where yeast can proliferate.

4.    Use of Certain Medications

Prolonged use of certain drugs, like corticosteroids or antibiotics, can also trigger a yeast infection in dogs. While these medications can be life-saving, they can sometimes disrupt the natural environment of your dog’s skin. Antibiotics, for instance, can eliminate beneficial bacteria that naturally keep yeast populations in check, leading to overgrowth.

5.    Trapped Moisture in Skin Folds, Ears, or Paw Pads

Certain breeds with skin folds or lengthy ears can have trapped moisture, creating conditions for a yeast infection. Breeds with skin folds like Bulldogs, Pugs, or Shar-Peis, and those with long ears like Basset Hounds or Cocker Spaniels, are more susceptible. Similarly, moisture can get entrapped between paw pads. To prevent this, ensure these areas are kept dry, particularly after swimming or bathing, and regular checks for any signs of infection are maintained.

6.    Nutritional Imbalances

Inadequate nutrition can also lead to yeast infection in dogs. Diets low in essential nutrients or high in sugars and grains may negatively impact a dog’s skin health and immunity that contribute to an increased risk of yeast infection.

7.    Parasites

Parasitic infestations, such as fleas, ticks, and mites, can cause skin irritation and inflammation, creating favorable conditions for yeast overgrowth. Parasites often cause dogs to scratch and bite their skin, causing lesions that may invite opportunistic yeast infections. Regularly check your dog for parasites, and use preventive measures such as flea and tick medications like Nexgard Spectra to keep parasites at bay.

8.    Environmental Conditions

Environmental conditions such as humidity and heat can play a role in yeast overgrowth. Warm, moist areas of a dog’s body – such as in the ears or between paw pads – can become breeding grounds for yeast if not kept clean and dry.

Symptoms of Yeast Infection in Dogs

How can yeast dermatitis manifest in dogs? If your dog is suffering from yeast dermatitis or an ear infection, you may notice a few telltale indicators, such as:

1.    Persistent Itching and Licking

One of the first symptoms of yeast infection in dogs is the dog’s visible discomfort and evidenced by recurrent scratching and licking. Yeast grows in the moist and warm areas of a dog’s body – such as their ears, paws, and skin folds. If your furry friend is excessively scratching, licking, or biting these areas, it could be a sign of yeast overgrowth.

2.    Unpleasant Skin and Coat Condition

When dogs are suffering from a yeast infection, changes in their skin and coat become apparent. Yeasty skin patches may appear discolored, ranging from red to brown. The skin may turn greasy or oily and could be accompanied by a flaky, crust-like texture. Also, your dog’s fur may appear dull or even start thinning over the infected areas.

3.    Distinctive Odor and Ear Discharge

One distinct symptom that differentiates yeast infection from other canine dermatological conditions is the strong and somewhat disagreeable smell produced by infected areas. Often described as a ‘musty’ or ‘yeasty’ odor, it becomes more potent with the progression of infection. Further, dogs with yeast infections in their ears can produce a waxy, brownish discharge, which is another critical symptom to watch out for.

4.    Hair Loss or Bald Patches

An unexpected symptom of yeast infection in dogs includes hair loss or the appearance of bald patches. Further, Yeast overgrowth may lead to an unhealthy skin environment that can cause the fur to thin out or even fall off, resulting in clear, bald areas.

5.    Head Tilting and Shaking

For dogs dealing with an ear yeast infection, a frequent symptom can be persistent head tilting and shaking. Your canine friend may be trying to relieve the uncomfortable itch or irritation in their ears caused by the yeast. Consequently, this ongoing discomfort may prompt them to tilt their heads or shake them more often than usual.

6.    Hearing Loss

In severe cases of ear yeast infections, it may impact your dog’s hearing ability. And when, the infection goes unchecked and becomes intense, it could potentially cause temporary or even permanent hearing loss. Therefore, if your dog seems unresponsive to auditory stimuli, an ear check for possible yeast infection may be in order.

7.    Behavioral Changes

Lastly, your dog’s interaction with you and its surroundings can supply more subtle clues about its health. Dogs with a yeast infection may exhibit behavioral changes such as lethargy, decreased appetite, or even uncharacteristic aggression due to discomfort or itchiness. If you observe such changes, it’s a good idea to consult your vet, as this could be your dog’s way of signaling distress.

Diagnosis of Yeast Infection in Dogs

Ensuring your dog’s well-being often means deciphering signs of discomfort and seeking professional help when needed. If you suspect your pet has a yeast infection, your veterinarian’s expertise is crucial.

Below, let’s explore the step-by-step process veterinary professionals use to pinpoint a yeast infection in dogs.

Comprehensive Physical Check-up

Firstly, your vet will carry out a meticulous physical check-up of your dog, focusing on regions typically prone to yeast overgrowths such as ears, paws, and underarms. Moreover, symptoms like redness, unusual smells, flaking skin, or abnormal discharge are key indicators of a possible yeast infection.

Microscopic Examination of Samples

Next, to validate the preliminary findings, your vet may collect samples through swabs or skin scrapings from the affected areas. This biological material is then observed under a microscope. The presence of uniquely shaped yeast cells, resembling little footprints or corkscrews, amplifies the likelihood of a yeast infection.

Yeast Culture Test

In certain circumstances, microscopic examination might not yield conclusive results. Here, your vet might resort to a culture test. And then, placing the collected sample in a yeast-friendly environment, any underlying yeast will grow to detectable levels, helping confirm the diagnosis.

Supplemental Investigations

At times, your vet might need to look beyond the obvious to identify underlying issues or secondary complications. This could involve running blood tests, evaluating potential allergic responses, or screening for endocrine diseases.

Treatment for Yeast Infection in Dogs

When your furry friend is suffering from a yeast infection, effective treatment must be promptly implemented. This often means a combination of treatments prescribed by your trusted vet and home care strategies that you administer.

Let’s take a look at both aspects to ensure you’re fully equipped to help your canine pal bounce back.

Veterinary Interventions

A range of treatment options prescribed by your vet can address yeast infections in dogs:

Topical Medications: When it comes to localized yeast infections, topical applications like creams, wipes, or shampoos are often quite useful. So, products like the ‘Be Soothed. Tea Tree Oil Skin Relief’ and ‘Super Cleaning & Conditioning Pet Shampoo’ are highly recommended. What’s more? They contain tea tree oil, a natural substance known for its potent antifungal properties, which help control yeast infection development.

Another solution could be ‘Zymox Otic Enzymatic Solution with Hydrocortisone’, an effective treatment, especially for yeast infections occurring in your dog’s ears.

Oral Medication: For more severe or widespread yeast infections, your vet may prescribe oral antifungal medications like ‘Ketoconazole’ or ‘Fluconazole’. These drugs help to eliminate yeast from your pet’s entire body, thus, treating the infection from the inside out.

Ear Treatments: For yeast infections inside your pet’s ear, a vet-sanctioned ear cleaning followed by antifungal ear drops like ‘Curaseb Dog Ear Infection Treatment Solution’ can alleviate symptoms and suppress the growth of yeast.

Chewables to prevent parasites: Nexgard Chewables for dogs are a popular choice to prevent flea and tick infestations. With a beef flavor that appeals to dogs, Nexgard could be a suitable and convenient option if your dog’s yeast infection is caused or exacerbated by these pests.

Addressing Root Causes: If the yeast infection is a symptom of an underlying health issue, such as endocrine disorders, allergies, or immune deficiencies, your veterinarian will form a treatment plan focusing on this root cause alongside the yeast infection treatment. In cases when the infection has progressed farther into the ear canal, your veterinarian will be the only one to prescribe oral medicine and, in extreme cases, recommend surgery. It may take as long as six weeks for a severe yeast infection within the ear to clear up.

Home Remedies and Care

Alongside vet-prescribed treatments, there are a few tactics you can use at home to ease your pet’s discomfort and support recovery:

Regular Grooming: Consistently maintaining your dog’s cleanliness can help prevent yeast buildup. In addition, regular baths with a vet-recommended or hypoallergenic shampoo can help control yeast.

Nutrition and Diet: A nutritious, balanced diet supports a healthy immune system and can prevent the recurrence of yeast infections. Before making any changes to your dog’s diet, consult your vet to ensure you meet their dietary needs while avoiding potential allergens.

Keeping Moisture at Bay: Regularly drying your dog’s ears, paws, and skin folds can help stop the yeast from thriving. Using clean, unscented towels to remove excess moisture following baths or playtime is recommended.

Apple Cider Vinegar Solution: With your vet’s approval, create a diluted solution of apple cider vinegar and water (equal parts) to gently cleanse your dog’s ears, paws, or skin.

Supplements and Probiotics: Vet-recommended probiotics or immunity-boosting supplements can help maintain your pet’s overall health and keep infections at bay.

Prevention of Yeast Infection in Dogs

We all know how irritating a yeast infection can be – and our pooches feel the same! While a trip to the vet can often sort out the problem, the old saying, “Prevention is better than cure,” rings true.

So, let’s run through some savvy tips to keep your fur baby yeast-free.

1.    Cleanliness is Key

Top of the list for keeping yeast at bay? Hygiene! A nice clean coat doesn’t just make for a shiny, handsome pooch but it keeps nasties like yeast from taking hold.

    • Bathtime: Your vet knows best! Ask them for a recommended antifungal shampoo to use in your buddy’s baths to keep their skin fresh, clean, and free of yeast.

    • Drying: Post-bath shivers can be cute, but let’s make sure our pooches are thoroughly dried, especially in those places yeast loves to lurk – ears, paws, and skin folds. No yeast party here!

    • Ears: Keep those ears squeaky clean and check regularly for signs of yeast – especially important for our floppy-eared friends!

2.    A Dinner to Wag About

All our furry friends deserve a scrumptious and satisfying meal. But did you know a good diet can boost your dog’s health to help them combat yeast infections?

    • Quality Grub: Toss out the cheap fillers and artificial extras! Your pooch deserves natural, high-quality ingredients.

    • Gut Boosters: Vet-approved probiotics aren’t just for humans! They can bulk up your dog’s gut health and immunity, keeping infections at bay.

3.    Saying Goodbye to Allergens

The sneaky exacerbators of yeast infections, and allergens, can be lessened. Here’s how:

    • Food Detective: Do an elimination diet to figure out any food allergens and kick them to the curb.

    • Clean House: Keep your home and your fur baby’s space clear of nasty allergens like dust mites, pollen, and mold. A little house cleaning never hurt anyone!

4.    Clean and Dry Living Spaces

Yeast loves a humid party – but not in our house! Keep your dog’s living areas dry and yeast-free by:

    • Cushion Care: Wash and dry your dog’s bedding regularly. Perfect during those humid months of the year.

    • Air-flow: Make sure your dog’s spaces are well-ventilated, clean, and dry.

5.    Vet Checks and Flea Fighters

Don’t forget those regular vet check-ups and flea and tick preventatives – they can be the best defense.

    • Health Check: Regular checks at the vet can catch yeast infections before they become a problem.

    • Flea Fighters: Fleas and ticks are more than just parasites – they can increase the risk of yeast infections. Keep them away with vet-recommended products like Nexgard or Frontline and don’t forget to groom your pooch regularly.

The Best Products to Treat Yeast Infection In Dogs

Primarily, keeping your dog healthy, happy, and itch-free is a top priority for any pet parent. So, if your pup is dealing with a pesky yeast infection, it’s important to find the right products to alleviate their discomfort. With a myriad of treatments available, it might be overwhelming to choose the most effective one suited to your pet’s condition.

But don’t fret – we have researched and compiled a list of some of the best highly-rated products available in the USA to treat yeast infections in dogs.

Let’s explore these options and help your furry friend get back to their playful self!

1.    PetArmor Plus Flea and Tick Prevention for Dogs

Available on Amazon, PetArmor Plus is a waterproof, fast-acting, and long-lasting flea and tick prevention treatment specifically designed for large dogs weighing 45-88 pounds. Though it is not directly aimed at treating yeast infections, maintaining healthy flea and tick control can contribute to your dog’s overall skin health and help reduce the risk of yeast overgrowth.

Pros: Pet Armor Plus Dog Flea Treatment breaks the flea life cycle, unlike other flea and tick treatments that temporarily reduce flea activity! It starts killing fleas within 24 hours and provides 30 days of nose-to-tail protection, breaking the flea life cycle to prevent re-infestations.

Cons: It targets fleas and ticks, rather than specifically focusing on yeast infections. Some dogs may experience side effects such as skin irritation or gastrointestinal issues.

2.    Veterinary Formula Clinical Care Antiseptic and Antifungal Medicated Shampoo

Available here, this shampoo is a popular choice among pet owners battling yeast infections. It’s packed with antiseptic and antifungal properties that can treat and soothe the uncomfortable symptoms of yeast infections. Further, it keeps the dog’s coat healthy, shiny and deodorized.

Pros: Accessible over the counter, affordable, and offers quick relief from the symptoms.

Cons: Some dogs may not tolerate the fragrance well, and overuse can dry out the skin.

3. Zymox Otic Pet Ear Treatment

Many pet owners speak highly of this product. It treats inflammation and yeast infections in the dog’s ears. The patented LP3 Enzyme System in this product reacts with the infection’s source, breaking through the cell walls of harmful microorganisms.

Pros: Non-invasive, doesn’t require cleaning before application, effective in treating resistant organisms.

Cons: Not designed for punctured eardrums, and it may cause discomfort initially.


Yeast infections in dogs can be a persistent and uncomfortable issue for our furry friends but with proper care, treatment, and preventative measures, we can help them lead healthier and happier lives.

Consult with your veterinarian to discuss the best course of action for your pet’s unique needs. When it comes to over-the-counter treatments, consider options like Veterinary Formula Clinical Care Antiseptic & Antifungal Shampoo, Zymox Otic Pet Ear Treatment, PetArmor Plus Flea and Tick Prevention for Dogs. Each product has its pros and cons, so be sure to discuss these with your vet.

By staying informed about your dog’s health and working closely with a trusted veterinarian, you can tackle yeast infections effectively and help your pet enjoy a soothing, itch-free life.

Remember, our pets’ well-being lies at the heart of everything we do, and by making educated choices about treatments and preventative care, we can ensure a long-lasting, joyful bond with our canine companions.

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