What causes hearing impairment? What is Hearing Impairment?

Hearing impairment refers to the organic or functional abnormalities of the nerve centers at all levels in the auditory system for sound transmission, perception and comprehensive analysis of sound, resulting in varying degrees of hearing loss. The habit is called deafness.

1. Genetic factors: If the hearing impairment is congenital, the baby may also be accompanied by other malformations, and the hearing impairment is only one of the manifestations, which is called symptomatic hearing impairment. It can also be present on its own, without other malformations, called non-symptomatic hearing impairment.

About 80% of congenital inherited hearing impairments are autosomal recessive, 18% are autosomal dominant, and 2% are X-companion.

2. Drug causes: gentamicin is the main drug that causes toxic deafness, which damages the vestibule and cochlea of the ear, and the use of gentamicin in children will cause irreversible hearing loss. In addition, streptomycin, kanamycin, diuretics, quinine and chloroquine, contraceptives, heavy metal preparations, etc. are all ototoxic drugs, and the above drugs should be used with caution.

This is also the cause of hearing impairment.

3. Noise factor: long-lasting excessive noise will have a negative impact on the central nervous system, especially damage to the auditory organs, and noise will cause great damage to the mucosa and hair cells of the inner ear, resulting in hearing impairment.

4. Infection and disease: meningococcal meningitis, measles, mumps, rubella, cold and other diseases can degenerate and atrophy ganglion cells or become inflamed and dissolved; It may also invade the auditory nerve trunk, and it may become inflamed or compressed by the scar left by the surrounding inflammation, and sometimes the cells of the auditory nerve nucleus can be edematous or even dissolved, resulting in deafness.

5. Traumatic factors: perforation of the tympanic membrane caused by trauma can cause conductive deafness; Traumatic brain injury, damage to the inner ear, sudden knocking, or sudden changes in air pressure can cause neural hearing loss, which in severe cases is likely to lead to permanent deafness.

There are many reasons for that disorder, it may be that you are born with insufficient development in the womb, or it may be acquired, and the influence of Warcraft.

Hearing impairment, commonly known as deafness, refers to the difficulty of hearing due to various reasons, and the inability to hear or hear the environmental sound and speech sound clearly.

The degree of this includes the following:

Mild: Difficulty listening to conversations.

Moderate: Difficulty listening to loud conversations.

Severe: Shouting loudly into the ear can only hear a few words.

Very severe: Can't hear a word when you shout loudly into your ear.

Hearing impairment can directly affect people's lives, work and learning; For children, it can affect the development of their language ability, and in severe cases, they can become deaf and dumb.

Hearing impairment refers to difficulty hearing in both ears due to various reasons, and it is impossible to hear or hear environmental sounds and speech sounds clearly.

Disease definition: Hearing impairment refers to the lesions of the auditory nerve and the auditory nerve and centers at all levels in the auditory system and its auditory conduction pathway, resulting in auditory dysfunction and varying degrees of hearing loss.

Epidemiology: Hearing impairment is more common in people over 60 years of age, and the incidence of hearing impairment in women is lower than in men. In neonates, the incidence of hearing impairment is 1 3.

MOST** Risk Factors: The mainly** risk factors for hearing impairment are genetics, inner ear damage, ear infections, endoskeletal abnormalities, tumors, earwax, and tympanic membrane rupture. Risk factors include increasing age, loud noises, prolonged exposure to noise, certain medications and diseases.

Divided into sub-type stages: according to the degree of hearing loss, it is divided into mild hearing loss, moderate hearing loss, moderate to severe hearing loss, severe hearing loss and very severe hearing loss. According to the nature of hearing loss, it is divided into conductive deafness, sensory deafness, and mixed deafness.

According to the time of onset, it is divided into congenital deafness and acquired deafness.

Main symptoms: The symptoms of Xiaokai are also different depending on the degree and degree of hearing impairment. Symptoms include tinnitus, hyperacusis, vertigo, and inability to distinguish sound types.

Main Methods & Key Points & Difficulties: Depends on the cause and severity of the hearing impairment. Commonly used methods include symptomatic, surgery, hearing aids, cochlear implants, etc.

The main cause of the disease is the danger of escalation: Hearing impairment has a significant impact on the quality of life of patients. Prolonged hearing impairment can make life and learning difficult, and even feelings of loneliness and depression.

Other: After normalization**, most patients can recover part of their hearing and improve their quality of life.

The so-called hearing impairment, that is, deafness, is not exactly the same as what doctors call deafness and what ordinary people call deafness. In the doctor's description, all hearing impairments, that is, as long as there is hearing loss that is not normal hearing, are collectively referred to as deafness, but deafness is divided into mild, moderate and severe, and it is divided into degrees. The people understand that deafness is that they cannot hear, and it becomes deafness, and it can hear but may not become deaf if it is weak.

In the older sayings, it is also said that the ears are heavy or hard of hearing.

There are three types of hearing impairment: conductive, sensorineural and mixed. Patients with lesions in the auricle and external auditory canal are conductive hearing loss; Patients with cochlear lesions are sensory hearing loss; If there is a lesion in the cochlear nerve, the hearing loss is neurogenic hearing loss.

Hearing impairment can cause tinnitus, inability to hear sounds, and insensitivity to the perception of the outside world.

Hearing impairment means that sometimes you can't hear clearly, or there is a murmur next to you, or there is no sound in your ears at all, etc.

Hearing impairment is when there is a problem somewhere in the auditory system that prevents a person from hearing, understanding, and processing sounds accurately. Hearing impairment can affect different aspects of an individual's hearing, including hearing range, voice clarity, hearing acuity, etc. Hearing impairment is generally divided into four categories: slag-obstructed hearing impairment related to the outer ear, sensorineural hearing impairment related to the inner ear, neural hearing impairment related to the auditory nerve, and central hearing impairment.

Among them, conductive hearing impairment is caused by problems with the structures of the outer and middle ears such as the state. Sensory hearing impairment is caused by damage to the inner ear and auditory nerve. Sensorineural hearing impairment is usually caused by damage to the auditory nerve or its associated nerves.

Central hearing impairment, on the other hand, is caused by damage to hearing-related areas of the brain or other nervous system.

Hearing impairment can cause problems such as speech and communication impairment, learning difficulties, social difficulties, etc., so if you or someone close to you is experiencing symptoms of hearing impairment, you should seek medical help as soon as possible.

Hearing impairment refers to the transmission and sensory sound transmission in the auditory system, and the organic or functional abnormalities of the auditory centers at all levels and the auditory centers at all levels, resulting in varying degrees of hearing loss.

Hearing impairment is one of the main problems that affect the quality of human life and cause disability, it is a general term for different degrees of hearing impairment caused by organic or functional lesions in the auditory conduction pathway, mild degree of deafness is sometimes called heavy hearing, hearing loss that significantly affects normal social skills is called deafness, and people who cannot use language to socialize normally due to hearing impairment in both ears are called deaf-mute or deaf.

Symptoms of hearing impairment vary in severity and symptom manifestations, usually manifested as hearing loss, tinnitus, auditory hallucinations, auditory agnosia, etc.

Typical symptoms. Tinnitus often buzzes like a train, especially in quiet environments.

Hyperacusis. Conscious of the outside noise and harsh sound.

Deafness and hearing loss are progressive or fluctuating.

Auditory hallucinations are relatively rare to hear them consciously because there is no sound in reality.

Auditory agnosia. Can't distinguish between vocalization**, whether it's the sound of a person talking, or the sound of an animal calling or an object impacting.

Other symptoms. Dizziness is often present in elderly patients.

Vertigo can rarely cause episodic vertigo or balance disorders, ataxia, etc.

Sleep disturbances. Patients with tinnitus often have sleep disturbances, which further aggravate tinnitus, forming a vicious circle.

Some patients with vomiting and dizziness may be accompanied by autonomic dysfunction symptoms such as vomiting and sweating.

Complications of hearing loss can severely reduce the ability to distinguish between speech, especially in children with language and cognitive impairments, more severely than in other able-bodied children, and can lead to language impairment and even intellectual developmental impairment.

The main manifestation of love is the inability to hear what others are saying clearly, and it is easy to paraphrase other people's words incorrectly.

I think the first is to pluck the ears with an unhygienic ear plucking tool, and then it will dig very deeply, and secondly, I think I will wear headphones to put the sound very loud; It may be impossible to go to some military schools and pilot positions.

If you are often in a particularly noisy environment, watching TV or listening, you like to turn up the volume to the maximum, which will cause hearing damage and lead to hearing impairment; Hearing impairment can cause hearing loss, which can prevent us from carrying out our normal life and work, and can also cause communication barriers.

Violent acts with others, being slapped by others, hitting the ears, working in a noisy environment for long periods of time, often listening to headphones and sleeping with headphones. It will cause you to be unable to hear the horn of the car, and it will also cause deafness, which will affect your work and make friends.