Can hearing loss in one ear be restored?

In general, whether hearing loss in one ear can be restored depends on the underlying cause. If the hearing loss is due to blockage of the external auditory canal, it is usually reversible. However, if it results from untreated sensorineural hearing loss, recovery may not be possible. It is recommended to seek medical attention promptly, identify the specific cause, and receive appropriate treatment under the guidance of a qualified physician. Detailed explanations are as follows:

The external auditory canal is a crucial pathway for sound transmission to the inner ear. When this canal becomes blocked by earwax, foreign objects, or inflammatory secretions, sound conduction is impeded, leading to hearing loss. In such cases, the sensory cells of the inner ear remain intact; only the sound transmission path is temporarily obstructed. By cleaning the external auditory canal and removing the blockage, thus restoring its patency, hearing typically returns to normal.

Sensorineural hearing loss refers to hearing impairment caused by damage to the inner ear or auditory nerve. This type of damage may result from various factors, including noise exposure, ototoxic drugs, infections, or genetic conditions. If sensorineural hearing loss is not treated promptly and effectively, the auditory cells may progressively die or lose function, resulting in permanent hearing loss. Because auditory cells have limited regenerative capacity, once damaged, they are often unable to recover. Therefore, hearing loss in such cases may be irreversible.

To protect hearing, it is important to avoid prolonged exposure to noisy environments, limit the use of headphones, and keep the volume at a moderate level.