The white flakes on the inner wall of the ear canal may be caused by fungal disease of the external auditory canal, and may also be caused by otitis externa, cholesteatoma and other factors. 1. Fungal disease of the external auditory canal: the phenomenon of white flakes on the inner wall of the ear canal like garlic skin may appear after fungal infection of the external auditory canal. 2. Otitis externa: it may be related to bacterial infection, due to the irritation of inflammatory substances, it will lead to white flakes on the inner wall of the ear canal, which may be accompanied by itching, and in severe cases, there will be pus flowing out. 3. Cholesteatoma: It may be related to trauma, narrowing of the external ear canal, infection, etc. It usually secretes some white substances, which will cause white flakes on the inner wall of the ear canal, and may be accompanied by pus from the ear canal, tinnitus, hearing loss and other symptoms. White flakes on the inner wall of the ear canal, it is recommended to go to the ENT department of the hospital for appropriate examination and treatment to avoid aggravation of the lesion.