How to find the cause of hearing loss?
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How to find the cause of hearing loss?
At present, there are five main categories of causes of hearing loss:1. Up to 5 out of every 1,000 babies will have disabling hearing loss at birth or in early childhood. Early detection and management are required , is important to provide appropriate support for deaf and hearing-impaired infants and young children, which will help them enjoy equal opportunities in society.
2. Noise is the main avoidable cause of hearing loss: Hearing loss caused by noise in the workplace has become the main cause of occupational hazards. The risk of entertainment noise, such as from music and other entertainment sound sources, has increased among young people globally, with an estimated 1.1 billion people at risk of hearing impairment due to unsafe hearing.
3. Chronic ear infection is an important cause of hearing loss: The global incidence of chronic otitis media or chronic ear infection ranges from 1% in developed countries to 46% in developing countries. Chronic otitis media can lead to hearing loss and may cause life-threatening complications and death. Chronic otitis media is largely preventable and can be effectively managed with medications and surgery.
4. Hearing loss affects 1 in 3 people over the age of 65: if left untreated, hearing loss can affect communication and cause social isolation, anxiety, depression and cognitive impairment decline. Age-related hearing loss can be effectively managed through a variety of means, including the use of Hearing Aids. What are the main causes of hearing loss?
(1) Conductive hearing loss (conductive deafness): Hearing loss caused by lesions in the outer and middle ears that cause obstacles in the conduction of sound. Common causes of deafness include: external auditory canal obstruction, foreign bodies, inflammation, congenital auditory atresia, acute and chronic suppurative otitis media, acute and chronic non-suppurative otitis media, congenital malformations, tumors, bullous myringitis, early otosclerosis, etc.
(2) Sensorineural hearing loss (sensorineural deafness, neurosensory deafness): refers to the inability of the cochlear spiral organ disease to convert sound waves into nerve excitement, or the disorder of the nerves and their central pathways and the inability to transmit nerve excitement into the brain; or the brain Cortical center lesions cannot distinguish speech, collectively referred to as sensorineural hearing loss. Such as Meniere's disease, ear drug poisoning, labyrinthitis, noise damage, acoustic neuroma, etc. Hearing impairment caused by lesions of the cochlear spiral organ in the inner ear is called sensorineural deafness (clinically, conductive deafness in the inner ear caused by lesions of the endolymph and basilar membrane is also summarized in sensorineural deafness), and nerve conduction pathways occur. Deafness caused by lesions is called neurological deafness. However, it is usually difficult to distinguish the differences between the two clinically, so the two are often combined and called sensorineural deafness. Therefore, clinically, various ear complications of acute and chronic infectious diseases, drug or chemical substance poisoning, labyrinthitis, membranous labyrinth hydrops, temporal bone fracture, acoustic neuroma, craniocerebral trauma, cerebrovascular accident, cerebrovascular sclerosis or spasm, etc. Deafness and presbycusis can be summarized in sensorineural deafness.
(3) Mixed hearing loss (mixed deafness): There are lesions in both the sound-transmitting and sound-sensing mechanisms. Such as long-term chronic suppurative otitis media, advanced otosclerosis, blast deafness, etc.
Once hearing loss occurs, it will cause great trouble to people’s lives. They will not be able to hear the phone ringing, knocking on the door, talking, etc. When hearing loss affects life for a long time, people will become withdrawn and do not like to communicate with others. Over time, it is very easy to cause both psychological and physical problems.
Today’s science and technology are becoming more and more developed. Hearing-impaired patients can choose to wear hearing aids. Wearing hearing aids can help hearing-impaired patients hear sounds. The principle of a hearing aid is like an amplifier, which can amplify the received sound, cause the inner ear to sense the sound and then transmit it to the auditory center of the cerebral cortex, so that the sound can be heard.