A yeast infection is one of the many conditions our dogs can face. It’s usually just a simple condition, easily treated when given appropriate and timely care. 

The problem is caused by yeast, which are naturally occurring fungi that live on your dog’s skin. Most of the time, these microorganisms cause no problems. However, when something triggers their growth, they start to multiply and cause irritation.

The most common types of yeast that affect dogs are Malassezia pachydermatis and the Candida species. Malassezia pachydermatis is often the more common cause of a yeast infection in dogs. 

But don’t worry. Yeast infections are generally simple to understand, manage, and prevent.

Where Do Dogs Usually Get Yeast Infections?

Dog yeast infections are typically common in areas such as the groin, neck folds, armpits, ears, and between the toes. These areas often tend to experience moisture buildup, enabling the growth of yeast. They can also happen within the mucous membranes and the digestive tract. 

The good news is that these are not contagious. However, it’s always helpful to avoid sharing grooming tools with other pets. 

Common Causes of Yeast Infection in Dogs

These infections happen when an underlying issue triggers them, particularly those that break the skin’s defenses. Here are eight common causes:

Genetics

Some dogs are just genetically prone to develop yeast infections. This is often due to their excessive skin folds, floppy ears, or dense coats. These areas are susceptible to moisture buildup, especially when they are not dried completely after a bath. 

Common breeds prone to yeast infections include:

• Shih Tzus

• Basset Hounds

• Poodles

• West Highland White Terriers

• Cocker Spaniels

Allergies

Skin allergies are also a major trigger for dog yeast infections. These reactions can inflame and irritate the skin, damaging the protective barrier and enabling yeast to grow uncontrollably. The allergens can be from the environment, food, or fleas. 

Common allergens include chicken, dairy, mold, dust mites, and flea saliva. 

Moisture and Humidity

Yeast thrives in environments that are moist and humid. This means that they are often common in areas such as the ears, armpits, paws, and groin. Yeast infections are more common when dogs swim or bathe frequently without getting dried thoroughly. 

Health Conditions

Health issues such as hypothyroidism, Cushing’s disease, and diabetes can disrupt the skin’s balance and barrier. This results in an increased vulnerability to yeast infections. These conditions often need to be treated to restore normal protection. 

Compromised Immune System

Your dog’s immune system is responsible for keeping conditions such as yeast infections at bay. When it gets weakened, either from illness, age, or stress, it becomes less effective in protecting your dog. Puppies, seniors, and dogs with chronic illnesses have an increased risk.

Overuse of Medications

While medications can often be the solution to several diseases, overusing them can be detrimental to your dog’s health. Excessive use of antibiotics and steroids can also eliminate the good bacteria and suppress immune function, respectively, resulting in a vulnerability to yeast. 

Poor Diet and Nutrition

What your dog eats directly shows on their overall health and skin condition. Diets high in carbohydrates and sugars can contribute to yeast overgrowth. Also, the wrong diet often leads to poor coat quality and skin health, further increasing the risk. 

Poor Hygiene

The lack of regular grooming and ear cleaning can create ideal environments for yeast to grow. Dirt, wax, and moisture buildup allow yeast infections in dogs to flourish, especially in dogs with long coats or skin folds. 

Additionally, dogs who are overbathed can also have poorer skin conditions due to the natural oils being stripped away from them.

What Are the Signs of a Yeast Infection in Dogs?

The signs of a dog yeast infection may vary depending on which part of the body is affected. They can also look similar to other skin conditions. So, if you notice any of these symptoms, it’s recommended to have your dog checked immediately. 

Common signs on the skin include:

• Excessive scratching and itching. Dogs with yeast infections tend to scratch or rub the affected areas nonstop. This is usually evident on the paws, groin, ears, or belly. 

• A foul odor. A foul and strong odor can emanate from your dog. This will smell musty or moldy. It’s often noticeable in the affected areas. 

• Greasy, scaly, or flaky skin. The skin may feel oily and appear shiny. There can also be flaking on the skin. 

• Excessive licking or chewing. Affected dogs might chew or lick their skin excessively. This comes from the constant discomfort and irritation. 

• Ear infections. Ear infections are also common, which can be seen as head shaking, scratching, and overall discomfort. Thick discharge and a strong odor are also evident. 

• Redness and inflammation. The skin can become red and inflamed, mostly due to the excessive scratching, itching, and biting. 

Yeast infections can also manifest as systemic symptoms. These include:

• Gastrointestinal discomfort. Dogs affected by yeast infections from Candida albicans can often experience diarrhea, abominable bloating, or vomiting. 

• Loss of appetite. Systemic yeast infections in dogs can also alter their appetite, causing them to skip meals or even have no interest in food. Weight loss will be expected. 

• Fatigue and lethargy. They may also seem tired and unwilling to play. Most of them will choose to lie down and sleep more. 

• Behavioral changes. The constant discomfort of the gastrointestinal system will make them restless and irritable. Some can also become more withdrawn.