There are many different causes that can lead to flakes of white behind the ears, and it is usually considered to be caused by simple chaffing, vitiligo, lichen planus, and other causes. Need by the physician according to the patient’s different causes, take appropriate treatment measures and methods. 1. simple chaff rash: clinical manifestations of a slight flaking, localized white spot changes, can be manifested as a piece of white behind the ears, this disease is usually associated with sun exposure, dryness, and their own vitamin deficiencies and other factors. 2. Vitiligo: it may be related to genetic, mental and immune factors, resulting in abnormal skin pigment metabolism. Patients can appear behind the ears, body limbs and trunk area of the phenomenon of white spots. 3. lichen planus: a fungal infection caused by malassezia infection, can appear behind the ear white, and the surface of the fine scales of the skin lesions. In addition to the above diseases, there are many other reasons that can lead to white behind the ears, and you need to go to the hospital to get a clear picture of the cause of the disease.