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Nowadays, the incidence of deaf patients is getting higher and higher. We often encounter patients with various deafness. The main reason for this phenomenon is the increased prevalence of deafness, especially sudden deafness. Due to the improvement of living standards, people’s leisure and entertainment life is becoming more and more abundant. Entertainment places like ktv and Di Bar are popular among the public, but such a noise environment can easily lead to sudden deafness.

　　The four major causes of sudden deafness

First, vascular disease

Vascular lesions are an important factor in the development of sudden deafness. Due to cold, heat, fatigue, mental agitation, allergies and endocrine disorders and other predisposing factors, causing autonomic dysfunction, resulting in inner ear blood circulation disorders. Its pathological changes can be vasospasm, edema, hemorrhage, thrombosis and blood cell adhesion, which leads to stagnant blood flow, insufficient blood supply to the inner ear, tissue edema, hypoxia, and metabolic disorders, and finally the inner ear receptors are affected. Damage, causing deafness.

Second, the virus infection

Viral infection is the most common cause of sudden deafness, and viral infection follows the following main pathways:

1. Blood infection: Virus particles directly enter the blood circulation of the inner ear from the blood circulation, causing cochlear circulation disorder or endolymphatic labyrinthitis.

2. Meningeal pathway: The virus is caused by extravaginal labyrinthitis from the subarachnoid space through the sieve plate of the inner auditory canal or through the vaginal canal, so the cochlear symptoms appear after meningitis. Herpes zoster virus is the main cause of perilymphatic labyrinthitis.

3. Through the round window approach: non-suppurative otitis media caused by the virus, the infection can invade the inner ear through the round window.

Third, the membrane lost water

Some mild to moderate sudden deafness, with or without vertigo, may be a different type of Meniere’s disease. Turks may also be the first symptoms of Meniere’s disease, with 5% to 6.6% of patients who eventually developed Meniere’s disease and 27% (3/11) who were positive for sudden onset urine test.

Fourth, the road film rupture

The labyrinth membrane rupture refers to the round window of the inner ear or the rupture of the oval window membrane and the rupture of the choroidal membrane. Due to the rupture of the membrane, symptoms such as sudden deafness, neurological deafness, dizziness and tinnitus are caused. Sudden deafness is induced by sudden force exertion or experiencing sudden changes in air pressure causing sudden changes in the middle ear pressure and sudden changes in intracranial pressure.

The causes of sudden deafness are mainly the above. We know that sudden deafness is caused mainly by these reasons. Therefore, we must pay attention to protecting our ears in daily life so as not to cause some harm. Affect your life, work or study.

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