It is normal to have a white membrane inside the ear, which may be clinically Some patients have a wide ear canal, and when illuminated with electric light, the white tympanic membrane deep in the ear canal can be seen. Normal tympanic membrane structures such as light cones and hammer bone stalks can be seen, and patients generally do not have any discomfort and are not in need of treatment. 2. Some patients have ear canal cerumen. The cerumen is flaky or membrane-like and attached to the deep part of the ear canal, and this change will be seen if the light is used. 3. Some patients have chronic eczema of the external ear canal, or fungal otitis externa, etc., which leads to a grayish-white discharge in the ear canal, and this will occur with a long-term accumulation of secretions. It is also impossible to exclude the possibility of other diseases such as cholesteatoma and scabs in the external ear canal. In conclusion, if a patient finds a white membrane inside the ear, it is recommended to visit an ENT clinic and have an otoscopy performed by a doctor. Checking the condition of the ear canal as well as the eardrum is generally not difficult to diagnose this condition.