According to a domestic sample survey, 3 out of every 4,000 children are deaf, and 1 out of 200 are hard of hearing. Every year, there are as many as 30,000-40,000 deaf children in my country.
Baby's hearing impairment will directly affect the formation of language ability, showing varying degrees of language impairment, and even deaf-mute.
In addition, delayed language development will also affect the development of children's psychology and behavior, and later will have difficulty concentrating, learning difficulties, and communication difficulties.
The causes of hearing impairment in children are otitis media, high fever, drug poisoning, family inheritance, developmental malformations, pregnancy diseases, forceps trauma, etc. Nearly half of the above reasons can be avoided. Therefore, parents and teachers must protect children's hearing. The classification of
deafness
can be divided into congenital deafness and acquired deafness according to the time of onset. Congenital deafness refers to the cause of deafness during the mother's pregnancy, and the baby is deaf as soon as it is born; acquired deafness refers to the deafness caused by various pathogenic factors after the baby is born.
can be divided into four categories according to the location and nature of the disease: conductive hearing loss, sensorineural hearing loss, mixed hearing loss and central hearing loss.
Deafness can be divided into: hereditary deafness, infectious deafness, drug toxicity deafness, traumatic deafness. The
study shows that 60% of deafness is caused by genetic factors, 20% of deafness is caused by environmental factors such as bacteria, virus infection, trauma and bumps, etc., and 20% of sudden deafness cannot find the exact cause, which may be Virus infection, vascular disease, staying up late, and stress are related. How does
congenital deafness cause?
congenital deafness, as the name suggests, is caused by congenital factors. It is related to genetic factors such as genes and the influence during pregnancy. Deafness genetic screening can be performed during pregnancy to understand whether the fetus There is a possibility of deafness in order to deal with it.
In addition, the first 3 months of pregnancy is a critical period for the development of the inner ear of the fetus. If the pregnant woman is infected with the virus during this period, it may hinder the normal development of the inner ear of the fetus and cause congenital hearing loss. During pregnancy, if diabetes, nephritis, abnormal thyroid function or even drug toxicity occurs, it may affect the hearing of the fetus. Therefore, the newborn's hearing screening should be paid attention to.
How is acquired deafness caused?
In addition to congenital deafness, acquired deafness is also a relatively common situation, and it is closely related to inappropriate ear habits.
is mentally stressed. In modern society, life is fast-paced and mentally stressed. Some young people stay up late for a long time and have irregular work and rest, which leads to excessive energy consumption, prolonged stress and fatigue, and eventually sudden deafness. Sudden deafness also needs attention. The earlier the treatment, the greater the possibility of hearing recovery. If the treatment is delayed, it may lead to lifelong deafness.
Noise influence. Many people know that sudden loud noises may cause deafness. However, they do not pay much attention to chronic noises in daily life. For example, the working environment is too noisy, and listening to music with headphones at high volume for a long time can make hearing Injured unknowingly.
Ear disease. Otitis media, ear tumors and other diseases all have symptoms of hearing loss. If they are not treated in time, the hearing loss will be difficult to reverse and eventually deafness will occur. Therefore, ear diseases need to be paid attention to and treated in time, and most people can avoid deafness.
trauma. Bad habits such as digging out your ears may damage the ear canal, or even pierce the tympanic membrane, causing hearing loss; in addition, violent factors such as slapping may also cause damage to the tympanic membrane. Some ototoxic drugs may also cause deafness. Be careful not to use drugs casually and follow your doctor's advice.
age. With age, hearing will gradually decline, but for presbycusis, hearing aids or cochlear implants can also be used to delay hearing loss and preserve existing hearing.
