The feeling of something blocking the left ear is clinically possible as follows: 1. There is cerumen blockage in the ear canal leading to a sense of ear blockage. 2. There is secretory otitis media with negative pressure in the tympanic chamber and fluid accumulation in the tympanic chamber, leading to a sense of ear blockage in the patient. At this time, a pure tone hearing threshold examination shows conductive deafness and acoustic conduction resistance examination shows type B or C curve. 3. It is neurological deafness, which is mainly due to blood supply to the inner ear and poor microcirculation in the inner ear leading to neurological deafness in patients, which can be accompanied by clinical manifestations such as tinnitus, hearing loss and vertigo. The tympanic membrane is intact without positive signs during the examination. A pure tone hearing threshold test shows sensorineural deafness, and the sound conduction resistance test is an A curve. This kind of patients can be treated by applying a combination of nerve nutrition, vasodilation, hormone, acupuncture, hyperbaric oxygen, etc. Some patients can have remission.4. Some patients can also have fluctuating stuffy feeling in the ear with fluctuating hearing loss and other changes due to Meniere’s syndrome.