Fungal Fun Facts: Malassezia

A very common fungal infection that many people may not be familiar with is Malassezia. It is commonly found on healthy animals, but does cause symptoms when it is allowed to over grow. Typically this is seen with an underlying allergy, chronic health issue or medication that affects the immune system.

 

Under a microscope the yeast look like foot prints (photo source)

Symptoms of increased numbers of Malassezia include intense itching, body odor, and thickening or darkening of the skin. It can occur anywhere on the body and even affect the ears. It is important to rule out other possibilities for these symptoms as well. Your veterinarian may recommend a full work up to ensure there are no other conditions occurring. This could include skin scraping to rule out mites. Cytology to confirm presence of the yeast and determine if bacteria is also present. They may also look for fleas and other parasites on the outside of the skin.

 

Thickened/Darkened skin due to yeast (photo source)

The most important part of treatment is to determine if there are underlying health conditions, such as allergies or chronic illness, and begin treatment for them. In some cases where the skin is not severely affected shampoos and lotions may be enough to manage the yeast and get them back to a normal state. In more advanced cases oral medications may be needed. If oral medications are needed your veterinarian may recommend blood work (if they have not done so to rule out other conditions) to ensure that the liver can metabolize the medication appropriately.

 

Elephant like skin due to yeast (photo source)

Many times if the underlying issue is a chronic condition, for exam allergies, there will be times where the yeast numbers will grow. Catching the signs early can help minimize the chance of the condition worsening. Contacting your veterinarian right away can help determine which protocol will work best for your pet! For more information on Malassezia please visit this website.