Hearing aids do not get more deaf as you wear them. Usually, people need to wear hearing aids to improve their hearing when their neurological deafness reaches moderate to severe level or above. When people wear hearing aids, they will feel that the sound is significantly improved and the sensation of external sound is significantly enhanced, but once the hearing aids are removed, they will feel that their hearing is significantly reduced and will return to the previous level, so it may cause the feeling that the more hearing aids are worn, the more deaf they become. In fact, hearing aids are bioelectric mechanical devices that can increase the decibel level of sound for neurological deafness in humans, but they have no significant side effects on the inner ear and middle ear, and they do not cause complications such as ear noise and cochlear nerve damage. However, the choice of hearing aids should have indications. The hearing aid is more effective when the hearing curve is above 75 decibels when an electrical audiometric examination is performed before the hearing aid is fitted.