What Causes Yeast On A Dog’s Skin?

Chihuahua Yeast Infection Guide


Yeast infections are a common problem in dogs, and they can be caused by a variety of factors. Understanding what causes yeast on a dog’s skin is essential to preventing and treating this condition. In this article, we will explore the most common causes of yeast infections in dogs and what you can do to keep your furry friend healthy and happy.

What is Yeast?

Yeast is a type of fungus that is commonly found on the skin of dogs. In small amounts, it is harmless and even beneficial. However, when the yeast population grows out of control, it can lead to infection and various health problems.

Factors that Contribute to Yeast Infections

There are several factors that can contribute to the growth of yeast on a dog’s skin. Some of the most common ones include:

1. Diet

A poor diet that is high in carbohydrates can contribute to the growth of yeast on a dog’s skin. Carbohydrates provide an excellent food source for yeast, allowing it to grow and multiply rapidly.

2. Environment

A warm and humid environment is also conducive to the growth of yeast. Dogs that live in hot and humid climates, or those that spend a lot of time in water, are more prone to yeast infections.

3. Allergies

Allergies, especially food allergies, can weaken a dog’s immune system and make them more susceptible to yeast infections. Dogs with skin allergies or other chronic health conditions are also at higher risk.

4. Genetics

Some breeds of dogs are predisposed to yeast infections due to their genetics. These include breeds with floppy ears, such as Cocker Spaniels and Basset Hounds, as well as those with wrinkled skin, like Bulldogs and Shar Peis.

Signs of Yeast Infections

Yeast infections can cause a variety of symptoms, including:

1. Itching and scratching

Dogs with yeast infections often experience intense itching and scratching. They may also bite or lick at their affected areas, causing further irritation and inflammation.

2. Redness and inflammation

Yeast infections can cause the skin to become red and inflamed. The affected areas may also be warm to the touch and have a distinct odor.

3. Hair loss

In severe cases, yeast infections can cause hair loss and scabbing. This is especially common in areas where the skin is thin, such as around the eyes, ears, and mouth.

Treatment and Prevention

Treating a yeast infection in a dog typically involves a combination of topical and oral medications. Your veterinarian may also recommend changes to your dog’s diet and environment to prevent future infections. To prevent yeast infections from occurring, it is essential to keep your dog’s skin clean and dry. Regular grooming, including bathing and brushing, can help remove excess yeast and prevent it from growing out of control.


Yeast infections can be a frustrating and uncomfortable problem for dogs and their owners. By understanding what causes yeast on a dog’s skin and taking steps to prevent and treat it, you can keep your furry friend healthy and happy for years to come. If you suspect that your dog may have a yeast infection, be sure to consult with your veterinarian for proper diagnosis and treatment.