The treatment options for hearing impairment vary depending on the cause, as follows: 1) abnormal development of the external auditory canal or malformation of the external ear contour, which requires surgery; 2) if there is a blockage of the ear cerumen or a foreign body blocking the external ear canal, the foreign body can be removed by some methods in order to restore hearing; 3) inflammation of the middle ear, which requires anti-inflammatory and symptomatic treatment; 4) if there is sensorineural hearing impairment or deafness, which requires hearing aids or even cochlear implants; 5) hereditary deafness, which can only be genetically diagnosed at present, and there is no special treatment method yet, so only symptomatic treatment is available, and depending on the degree of hearing impairment, hearing aids or cochlear implants can be worn.