Malassezia pachydermatis is a commensal yeast that is a normal inhabitant of the external ear canal and superficial epidermis in dogs. Malassezia dermatitis is recognised as a common skin disorder in small animal practice and is most commonly secondary to an underlying skin disease.
Dogs affected with Malassezia dermatitis, may also develop overgrowth of Staphylococcus pseudintermedius, a commensal bacteria. Some dogs with Malassezia dermatitis develop a hypersensitivity to the allergens produced by the yeast. In these cases, yeast numbers may be low but clinical signs can be severe.
If you suspect your dog may be suffering from Malassezia dermatitis, contact your veterinarian for further information.