Demodectic Mange ---------------- Demodectic mange, a common external parasite problem of hamsters, is caused by mites that reside within the hair follicles and certain glands of the skin. The mites cause dry, scaly skin and significant hair loss, especially over the back. This disease is rarely a problem by itself and is frequently associated with long-standing, debilitating diseases, such as those involving the kidneys. Hamsters exhibiting hair loss should be examined by a veterinarian as soon as possible. The doctor will do a skin scraping and examine it under the microscope. The presence of mites in the scraping confirms the diagnosis. This disease can be treated, but the patient may have an underlying problem for which there is no practical treatment or cure.