Itchy ears with white dry flakes may be caused by otitis externa, fungal disease of the external auditory canal, eczema of the external auditory canal and other factors. 1. Otitis externa: usually associated with bacterial infection, due to inflammatory stimulation, the symptoms of itchy ears with white dry flakes, there may also be pain, swelling, and in severe cases, can lead to hearing loss. 2. Fungal disease of the external auditory canal: When there is a fungal infection in the external auditory canal, it can also lead to itchy symptoms in the external auditory canal, accompanied by symptoms such as peeling and flaking. 3. Eczema of the external auditory canal: it may be related to environmental factors, such as being in a humid environment for a long time, which triggers eczema of the external auditory canal, resulting in localized itching, roughness, thickening of the skin, peeling, white dry dandruff and other symptoms. Itchy ears with white dry dandruff may also be caused by other diseases, and should be examined systematically by a doctor to make a clear diagnosis.