Hearing impairment can be divided into congenital and acquired. Congenital is often caused by genetics, drugs, or premature babies are in an incubator, because the auditory nerve is damaged during the recovery process; while acquired, some are caused by infection Meningitis, a viral infection causing suddenHearing loss, Or senile degenerative hearing loss.
Hearing loss is divided into three levels: mild, moderate and severe. Moderate hearing loss has seriously affected people’s normal life. It is also very important to prevent hearing loss in normal times, especially some high-decibel noises, which can easily damage people. Some damage to the eardrum of the patient cannot be rebounded. Only by starting prevention can we have a healthy body.