Demodicosis, Demodex Mange

Demodicosis, also called Demodex mange, is an allergic reaction to Demodex mites. Some breeds of dogs are predisposed to this skin disorder. They include American Staffordshire Terrier, Afghan Hound, Boston Terrier, Boxer, Chihuahua, Shar-Pei, Collie, Dalmatian, Doberman Pinscher, German Shepherd Dog, Great Dane, Beagle and Old English Sheepdog.

Signs of Demodicosis

Demodex mites can only be seen under a microscope. They live on the dog's skin without causing any problems. However, some breeds of dogs cannot tolerate them and develop allergic reaction. In this case, mites can cause hair loss and sometimes redness on the face, around the eyes, or at the corner of the mouth. Sometimes demodicosis affects the whole body.

The cracked skin oozing a clear fluid, red and scaly skin, redness on the face, around the eyes, or at the corner of the mouth, restlessness, fever and loss of appetite. Not all of these signs may not occur at and early stage of the disease. Young puppies or older dogs with a suppresses immune system are most susceptible. Treatment usually consists of applying insecticides and medicated shampoo.

The mites are transferred directly from the mother to the puppies within the first week of life. Older dogs who have a depressed immune system have also been known to acquire the disease.