Picking out a layer of film on the edge of the ear may be caused by dry skin, auricular eczema and other reasons. 1. Dry skin: the skin at the edge of the ear is delicate, dry weather, lack of moisture and other conditions will trigger dry skin to appear peeling phenomenon. Skin shedding at the edge of the ear and skin oil secretion mix to form a thin film, resulting in the edge of the ear will gouge out a layer of film. 2. Auricular eczema: Auricular eczema leads to edema of the ear skin, itchy, scratching to stop the itch because the skin around the edge of the ear is congested and fragile, which will lead to skin breakage. The broken ulcer will form a film after the secretion crust, so the edge of the ear will pick out a film. A thin film on the edge of the ear may be the result of discharged cerumen flakes, etc. It is important to pay attention to ear hygiene and moisturizing in daily life. If the condition persists, it is recommended to consult a doctor for a definitive diagnosis.