What causes deafness? What causes deafness?

Factors that induce deafness:

1 Noise: Noise is an important factor that directly causes hearing damage and is also an important cause of deafness. If you work or live in a high-decibel noise environment for a long time, the hearing cells will gradually be damaged. In the long run, tinnitus and hearing loss will occur.

2. Trauma: In people's daily life, some external injuries are ubiquitous, such as car accidents, direct injuries, violent vibrations, etc., which may cause damage to the tissues and organs in the ear.

3 Stress: The accumulation of excessive stress is an important reason for the sudden deafness of many people in today's society. Stress, fatigue and other conditions will cause the body's immunity to decrease, endocrine disorders, local blood vessel congestion, etc., which may cause local hypoxia and ischemia, and if it appears in the ear, it will affect the tissue function of the ear and affect hearing.

4 Drugs: Ototoxic drugs are an important factor in causing deafness, medical studies have shown that drugs that can cause deafness are common aminoglycoside antibiotics, as well as some antineoplastic drugs, diuretics, anti-inflammatory analgesics, etc.

5 Some diseases of the ear, such as otitis media and acoustic neuroma, are important causes of deafness or partial hearing loss.

The first thing to know is the composition of the ear, which is made up of the outer ear, the middle ear and the inner ear, and problems with any part of it can lead to deafness. Among them, conductive hearing loss is caused by lesions of the outer ear and middle ear, and the main causes are auricular deformity, middle ear deformity, otitis media, and otosclerosis; Neural hearing loss is caused by lesions of the cochlea, vestibular or semicircular canals of the inner ear, mainly due to inner ear deformities, drug-induced hearing loss, sudden hearing loss, trauma-induced hearing loss, presbycusis, and Meniere's disease.

There are many factors that cause deafness, including congenital factors and acquired factors. And according to the specific ** of deafness, it is divided into sensorineural deafness and conductive deafness, among which purulent otitis media is the main deafness disease causing conductive deafness. There are also ear canal narrowing, auricular deformities, tympanic membrane perforation, etc., which cause obstruction of the conduction path and lead to deafness.

Sensorineural hearing loss is common and is caused by lesions of auditory nerve cells. There are also some idiopathic causes of deafness, such as infection with certain diseases, such as syphilis patients, which can also cause varying degrees of hearing loss, and in severe cases, it will also lead to the occurrence of deafness.

Many factors, both congenital and acquired, can eventually cause deafness.

Congenital factors include genetic factors and maternal infections during pregnancy and childbirth.

Hearing loss occurs at birth and shortly after birth, and of course, it may be delayed.

Acquired deafness can occur at any age. For example, the risk of hearing loss increases as we age; The environment or noise is too loud and exceeds the normal tolerance threshold; Noise pollution for a long time, etc.

What are the deaf people?

The ear is divided into three main areas: the outer ear, the middle ear, and the inner ear. Sound vibrates through the eardrum in the form of sound waves through the ear canal.

The eardrum and three small bones of the middle ear, like dominoes, transmit sound waves in sequence and amplify them step by step until they reach the inner ear and vibrate the lymphatic fluid of the cochlea.

In the cochlea, the nerves are connected into thousands of cilia, which are enough to convert the vibrations of sound into nerve electrical signals, and finally transmit the signals to the brain, and the person hears the sound.

In the whole process, any problem in any link may lead to deafness.

Genetic factors. Genetic defects such as genetic or chromosomal abnormalities can lead to hearing impairment, most often sensorineural hearing loss.

Maternal environmental influences during pregnancy.

It refers to the child's hearing impairment caused by pathological factors such as maternal infection, poisoning or trauma during embryonic development, perinatal or delivery. For example, the mother's improper use of drugs during pregnancy, suffering from certain infectious diseases, improper use of forceps during childbirth, etc.

Infectious factors. Such as meningitis.

Measles. and mumps as well as otitis media. Wait. Tumor.

Acoustic neuroma. Patients may experience deafness due to tumor bleeding, edema of surrounding tissues, etc., which compresses the cochlear nerve.

Ototoxic drugs.

Certain medications can damage hearing, and there are currently more than 200 drugs and chemicals that have been documented to induce hearing***.

Trauma. Head injuries, especially skull fractures, put the ears at serious risk of hearing loss.

Abrupt changes in air pressure.

For example, diving, or when an airplane is taking off and landing, it may cause the inner ear fluid to move, and occasionally leakage or rupture, which can lead to damage to the inner ear nerve.

What are the triggers for deafness?

Age factor. As we age, the cells in the cochlea wear down, and if this relay station for sound signals is damaged, it can lead to hearing loss.

Noises. Long-term exposure to noise, such as occupational noise, regular sounds in workshops, carpentry, etc.; or short-term noises, such as gunshots, can cause damage to the inside of the ear.

Psychiatric and psychological factors.

Excessive stress, stress, and mood swings can induce deafness.

Some diseases that may affect hearing.

Heart disease. High blood pressure and diabetes, for example, can interfere with the blood flow in the ears**, putting hearing function at risk.

Generally, presbycusis is due to this degenerative lesion of sleeping mice and Zhecheng. You need to bring some non-meat products to do it**.

Deafness is caused by a bacterial infectious disease. Various acute infectious diseases, bacterial or viral infections such as Japanese encephalitis, mumps, cause many causes of deafness. Genetics is one of the important causes of early deafness, but it can also be influenced by external factors such as prenatal viral infections, use of ototoxic drugs, exposure to radiation or other toxic substances, perinatal hypoxia and trauma.

It also depends on whether it is senile neurotic, and there is no way to be neurological**.

Congenital deafness mainly refers to hearing impairment caused at birth or shortly after birth, and the main reasons for the occurrence are: 1. Because of hereditary reasons, hearing impairment caused by familial genetic or chromosomal abnormalities, genetic screening is of great significance for the prevention and treatment of this deafness. 2. Non-hereditary congenital deafness refers to the hearing impairment caused by infection, poisoning, trauma and other factors during the embryonic development period or the mother's childbirth.

The most important acquired deafness is otitis media, such as cardiovascular and cerebrovascular diseases are also easy to induce deafness, such as blood circulation disorders caused by hypertension and diabetes, such as endocrine disorders, drug poisoning, and the influence of noise.

Deafness is first and foremost congenital, either genetic or acquired. In addition, the virus that invades the ears in the womb can also cause symptoms of deafness, which usually occur slowly. In addition, acquired factors can also lead to deafness, such as trauma, often in a noisy environment, there will be slow hearing loss, and over time the ability to hear will be lost.

Deafness can also be caused by accidental injuries, such as car accidents.

Deafness can be divided into congenital factors and acquired factors, which generally include hereditary factors, pregnancy factors, and childbirth factors, and acquired factors are relatively complex.

Long-term high decibel environments can also cause deafness.

Many factors, both congenital and acquired, can eventually cause deafness.

Congenital factors, including genetic factors and maternal infection during pregnancy and childbirth, often lead to hearing loss at birth, shortly after birth, and of course, it may be delayed.

Deafness caused by acquired factors.

Formation of deafness:

1. Congenital inheritance: Elder inheritance, which means that in the parents' generation, the father or mother or both parents are deaf patients; Intergenerational inheritance, which refers to the deafness of the parents and the number of first-degree relatives (deafness caused by genetic or chromosomal abnormalities); consanguineous marriage; During the mother's pregnancy, she suffered from viral diseases such as rubella, mumps, influenza or diabetes, kidney disease, ** injection, improper medication, resulting in drug poisoning; Birth trauma, hypoxia, asphyxia, etc. caused by dystocia during childbirth. There are also abnormal ear development of the fetus.

2. Acquired deafness: in the disease, it is caused by improper injection and medication; or the formation of meningitis sequelae; and bruises; The mother is deaf due to drug toxicity, and its milk feeding the fetus can also cause deafness in the baby.

3. Deafness caused by harmful substances: With the continuous improvement of science and technology and the rapid development of industry and agriculture, the air, soil, transportation and other environments are seriously polluted, and the widespread use of fertilizers, pesticides, harmful gases, noise, chemical agents and antibiotics and other drugs leads to deafness.

4. Presbycusis: The elderly are prone to neural deafness, tinnitus, sudden deafness, and tinnitus due to the gradual decline or even lesions of various organs in the body.

Different types of deafness are also different and may be related to ear diseases, medications, the environment, etc.

There are many causes of deafness, including congenital and acquired, acquired diseases such as ear diseases, tinnitus, or neurological hearing loss, such as damage to ear hair cells.

In short, no matter what the cause of the hearing loss problem is, as long as the problem is found, it is recommended to intervene as soon as possible.

For example, wearing hearing aids and hearing problems should be paid attention to. For example, hearing tests are done every six months to a year.

Sudden deafness is often caused by fatigue or long-term poor sleep, and there may be some mood swings, which may also lead to such problems.

The causes of deafness include deformities of the outer ear and middle ear, congenital atresia of the external auditory canal or hypoplasia of the tympanic membrane, cochlear window, ossicular bone, vestibular window, etc.; or being infected by a virus during pregnancy or taking ototoxic drugs, and being injured during childbirth. There are two main causes of deafness, one is inflammatory, and the other is neurological. Inflammatory causes include cerumen embolism, tympanic membrane perforation, otitis media, and mastoiditis, which can lead to conductive hearing loss in the ear.

Neurological deafness is mainly due to exposure to noise or thromboembolism of the ear, and some are due to vertigo of the inner ear, such as Meniere's disease, which is accompanied by hearing loss. In addition, some of the auditory nerve damage caused by trauma, such as temporal bone fractures, intracranial fractures, and hematomas, can lead to the appearance of deafness.

Deafness is complex, with congenital and acquired factors, among which purulent otitis media is the most important deafness disease in conductive deafness, and in recent years, secretory otitis media has become the main cause of hearing loss in children.

According to the nature of deafness, we can divide it into four categories, which are conductive deafness, sensorineural deafness, mixed deafness and central deafness.

We need to know that there are too many factors that can cause us to suffer from deafness in daily life, such as common noise, some ototoxic drugs, trauma, and even reduced autoimmunity may also lead to deafness.

Deafness does not mean that you can't hear anything after it happens, as I said before, there are degrees of deafness, and some deafness will only have slight symptoms of hearing and hearing in the early stage, but many patients don't take it seriously when this phenomenon occurs, and feel that it doesn't matter, of course, the consequence of this is that the degree of deafness is getting worse and worse.

After deafness, we must intervene in time and check ** so as not to make it more serious.