Everyone in my family has normal hearing, so what caused my hearing loss?
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Everyone in my family has normal hearing, so what caused my hearing loss?
Hearing loss has many causes, the most common of which are age and noise damage. In addition, genetic factors (both congenital and acquired), ototoxic drugs, and many ear diseases can lead to hearing loss.
Common causes of hearing loss
1. Causes of sensorineural hearing loss
* Due to genetic factors, or The mother is damaged by certain harmful factors during pregnancy, such as drugs, infections, etc., which affects the development of the fetus's inner ear and causes congenital hearing loss.
* As age increases, the organs throughout the body will age, and the auditory organs will also undergo aging and degeneration, causing hearing loss and forming senile hearing loss.
* Due to engaging in certain occupations, long-term exposure to noise stimulation causes damage to the inner ear, which can lead to occupational hearing loss.
* Hearing loss caused by strong noises such as war, blasting operations, and sudden explosions that damage the inner ear is called blast hearing loss.
* The use of certain ototoxic drugs, such as streptomycin, gentamicin, kanamycin, etc.; or contact with certain toxic chemicals, such as phosphorus, mercury, etc., may cause damage to the inner ear and auditory nerve. Poisoning, causing toxic deafness.
* Infectious deafness occurs due to infection and poisoning of the inner ear and auditory nerve caused by infections such as meningitis, measles, mumps, and syphilis.
* Sometimes toxic dysentery, toxic pneumonia, etc. due to excessive virulence of bacteria can damage the hearing organs and cause infectious deafness.
* Sudden deafness can occur due to insufficient blood supply and hypoxia in the inner ear due to microcirculatory disorders in the inner ear.
* Trauma caused by accidents, such as fights, car accidents, etc., injuries to the skull, brain tissue, and inner ear causing concussion of the inner ear labyrinth, as well as accidental injury to the inner ear during middle ear surgery, can all cause hearing loss.
* When suffering from Meniere's disease, fluid accumulates in the labyrinth of the inner ear, often affecting the cochlea and causing hearing loss.
* Tumors on the auditory nerve itself or nearby areas can cause neurological hearing loss.
* Hysterical hearing loss can occur due to mental stimulation, great joy, great sorrow, or other psychological factors. 2. Common causes of conductive hearing loss
* Ear deformities: including constriction of the external auditory canal and deformity of the pinnaDeformation or disappearance, ossicular chain deformity or disappearance, cauliflower-like ears, etc.
* Cerumen embolism: Usually cerumen is discharged toward the opening of the external auditory canal, but sometimes cerumen accumulates in the ear canal and forms an embolus, which can partially or completely block the ear canal. Partial blockage of the ear canal does not cause hearing loss, but if the ear canal is completely blocked, it can affect hearing. In addition, when the cerumen plug is very close to the tympanic membrane, even if it is only partially blocked, it will affect the normal activity of the tympanic membrane and cause a certain degree of hearing loss.
* External ear eczema: The external ear or ear canal feels itchy and painful, and the skin of the external auditory canal is red and swollen.
* Otitis externa: Inflammation of the wall of the external auditory canal. If the swelling is not severe, it usually does not cause hearing loss.
* External auditory canal polyps: Polyps are formed by the growth of cartilage toward the external auditory canal. Any polyps or abnormal growths of bony tissue should prompt consultation with an ENT.
* External auditory canal collapse: related to age. The older you are, the more serious the collapse is. Collapse of the external auditory canal can cause partial or complete blockage of the ear canal. Lift the auricle upward or backward to open the ear canal.
* Tympanic membrane perforation: may be caused by inflammation, foreign bodies, fractures or popping sounds, slaps. Small eardrum perforations can cause a loss of 10 to 15 dB but usually heal on their own. Large eardrum perforations require surgical repair.
* Healing after tympanic membrane perforation: When the tympanic membrane is perforated or the middle ear is repeatedly infected, scarring will occur, which limits the mobility of the tympanic membrane and produces mild conductive deafness.
* Tympanic membrane sclerosis: Appears as a white calcified scar, caused by the degeneration of the tympanic membrane tissue.
* Tumor or cholesteatoma: a special type of otitis media, mostly perforation of the flaccid part of the tympanic membrane, and inflammation of the middle ear invades toward the external auditory canal. Persistent discharge of pus with a foul odor.
* Foreign bodies: The presence of foreign bodies in the external auditory canal can also affect hearing. As we grow older, our hearing will gradually decline. This situation may occur even when attention is paid to protecting your hearing. Typically, hearing loss with aging is caused by the decline of hair cells in the inner ear. Currently, there is no way to prevent this type of hearing loss, but there are many ways to hear more clearly, such as using Hearing Aids. You can talk to your otolaryngologist to find something that's right for you.
If you find that your hearing has declined, or you have difficulty listening in a noisy environment, you must arrange time for a professional hearing examination as soon as possible to understand your hearing status in a timely manner and listen to Expert advice, early detection and early intervention.