No, ear hair cells in mammals, including humans, cannot regenerate once damaged.
Unlike some species like fish, birds, and reptiles, humans lack the ability to regenerate the specialized hair cells in the inner ear responsible for hearing. Once these cells are damaged or destroyed, whether by noise exposure, aging, or other factors, they do not grow back. Other cells in the inner ear cannot convert themselves into new hair cells.
This lack of regeneration contributes to permanent hearing loss. Therefore, protecting your hearing from damage is crucial.
