Demodectic mange is caused by a small mite (Demodex canis) that is a normal inhabitant of hair follicles in dogs and even humans. Occasionally, for unknown reasons, the mites can proliferate and cause skin lesions that can be localized (in small areas) or generalized (over most of the body). It is not contagious, but often occurs within certain families of dogs. These families appear to have a defect in immunity that allows this condition to develop. Some cases resolve spontaneously, while others are resistant to extensive treatments. Signs include hair loss, reddened skin, scaling, and itching. Most lesions occur on the face and feet. Diagnosis requires examining a skin scraping under a microscope. Consult with your veterinarian for accurate diagnosis and treatment.
Dogs with this condition should not be used in a breeding program.
