Why does my dog keep getting fungal skin infections?

Many bacteria and fungi live on the skin but are controlled by the immune system and do not cause issues under normal circumstances. But, if skin conditions change or the immune system becomes suppressed, bacterial and fungal infections can result. Immune deficiencies or an increase in the amount of oils produced on the skin are common causes of yeast infections. While yeast infections are not contagious, they will often recur unless the underlying skin condition or allergy is addressed. Certain breeds may be genetically predisposed to yeast infections, such as the Lhasa Apso, Poodle, Dachshund, Shetland Sheepdog, West Highland White Terrier, Maltese Terrier, Cocker Spaniel, Basset hound, Australian Terrier, Silky Terrier, and Chihuahua. Any age or breed of dog can be afflicted, but older dogs are more susceptible due to their weakened immune systems. When it comes to staph infections, skin can become irritated when a dog excessively scratches, chews or licks. If your dog has an allergy to medications, food or environmental factors, or fleas, you may start to notice these behaviors. Some chronic debilitating diseases, allergies, fungal infections of the blood and other secondary infections may cause staph infections.

We know that yeast thrives in hot, humid environments, and infections can happen if your pet’s immune system is compromised or if they are taking strong immunosuppressive drugs. An increase in the amount of oils produced on the skin, or excess skin oils, can cause the condition. Other yeast-like organisms or fungi may invade the circulation system and cause issues in your dog’s organs. Fortunately, fungal dermatitis is not contagious, but can recur unless the underlying skin condition or allergy is controlled with medication. As for which breeds are predisposed to yeast infections, be on guard if you’ve got a Cocker Spaniel, Shetland Sheepdog, Dachshund, Basset Hound, West Highland White Terrier, Silky Terrier, Maltese Terrier, Australian Terrier, Poodle, or Lhasa Apso. Yeast infections can generally be treated long-term and you may see less itching within a week of starting the prescribed treatment. If your dog has an underlying issue such as a compromised immune system or allergy, how well these conditions can be treated and controlled will determine the outcome.