1. SensorineuralHearing impairments reason
Congenital hearing loss caused by genetic factors, or damage caused by certain harmful factors during pregnancy, such as drugs, infections, etc., affect the development of the inner ear of the fetus.
With the increase of age, the organs of the whole body will appear aging, and the hearing organs will also undergo aging and degradation, leading to hearing damage and the formation of age-related hearing impairment.
Due to a profession, long-term noise stimulation of the inner ear injury can lead to occupational hearing impairment.
Hearing damage caused by the inner ear is caused by strong noise such as war, blasting operation, sudden explosion, etc., which is a shock hearing injury.
The use of certain ototoxic drugs, such as streptomycin, gentamicin, kanamycin, etc., or exposure to toxic chemicals such as phosphorus and mercury may cause poisoning of the inner ear and auditory nerves, leading to toxic deafness.
Infected inner ear and auditory nerve poisoning, caused by meningitis, measles, mumps, syphilis and other infections, causing contagious deafness.
Sometimes bacteria such as toxic dysentery and toxic pneumonia can cause infectious deafness while damaging the auditory organs due to excessive toxicity.
Due to the microcirculatory disorder of the inner ear, the inner ear is insufficiently supplied with blood and lacks oxygen, which may suddenly occur.
Trauma caused by accidents, such as fighting, car accidents, skull injuries, brain tissue,
Middle ear implants with labial concussion and internal ear injury can cause hearing impairment.
When suffering from a disease of Meniere’s disease, the inner ear loses water and often affects the hearing damage caused by the cochlea.
Tumors in or around the auditory nerve can cause neurological hearing loss.
Mental stimulation or other psychological factors can cause hysterical hearing loss.
2.ConductivityHearing impairmentCommon cause
Ear malformation: including external auditory canal atresia, auricular deformity or disappearance, ossicular chain, broccoli ear malformation or disappearance.
Ear wax embolism: earwax is usually excluded from the direction of the external auditory canal, but sometimes earwax can accumulate in the ear canal, forming a bolt that partially or completely blocks the ear canal. Some ear embolization will not causeHearing impairmentHowever, if the ear canal is completely blocked, it will affect hearing. In addition, when the suppository is very close to the tympanic membrane, even if it is only partially blocked, a certain degree of hearing damage may occur due to the normal movement of the tympanic membrane.
Eczema of the outer ear: itching or pain in the outer ear or auditory hall, and redness and swelling of the external auditory canal.
Inflammation of the external auditory canal: inflammation of the wall of the external auditory canal. If the swelling is not serious, it usually does not cause hearing damage.
External ear canal polyps: Polyps are formed by the growth of cartilage in the direction of the external auditory canal. GPAny abnormal growth of polyps or bone tissue should be consulted.
Collapse of the external auditory canal: related to age. The older you are, the more serious the collapse. Collapse of the external auditory canal can result in partial or complete obstruction of the external auditory canal. The ear canal can be opened by lifting the auricle up or back.
Tympanic membrane perforation: may be caused by inflammation, foreign body, fracture or popping sound, slap in the face. Small tympanic membrane perforation can cause10To15dbThe loss, but usually heal itself. Huge tympanic membrane perforations must be repaired by surgery.
Healing of the tympanic membrane after perforation: When the tympanic membrane is perforated or the middle ear is repeatedly infected, scars may occur, thereby restricting the activity of the tympanic membrane, resulting in mild conductive deafness.
Tympanic membrane hardening: A white calcified scar caused by degeneration of the tympanic membrane.
Tumor or cholesteatoma: A special type of otitis media, mainly tympanic membrane perforation, which invades the ear canal. Sustained pus and odor.
Foreign body: Foreign matter in the external auditory canal can also affect hearing.