Feeling as if the inside of the ear is blocked by a layer of membrane may be caused by cerumen impaction, secretory otitis media, sudden deafness and other reasons. 1. Cerumen impaction: When the ear is impounded with cerumen, the outer ear canal will be blocked, and the sound will be hindered in transmission, and the ear will feel stuffy, as if it is blocked by a layer of membrane. 2. Secretory otitis media: this disease can be caused by the dysfunction of the Eustachian tube, resulting in the accumulation of fluid in the middle ear cavity, which will lead to a certain obstruction of the sound transmission structure, and the ear is blocked like a membrane. 3. Sudden deafness: mental stress, overwork and resistance to decline and other factors can cause this disease, or may appear ear boring symptoms. Feeling as if the inside of the ear is blocked by a layer of membrane, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease according to the doctor’s guidance for standardized treatment.