The auditory processing disorder (APD), is characterized by the difficulty of hearing, processing and using auditory information correctly, which causes the interference of learning, concentrating and interacting with other people.
There are multiple causes of hearing loss and its possibilities are derived from: family history, diseases such as ear infections and meningitis, trauma, wrongly administered medications, exposure to loud noises over long periods and aging.
It has been possible to conclude that hearing disorders include hearing loss, which can be of the transmissive or neurosensory type. The first one, of the transmissive type, occurs due to alterations in the external auditory canal or when there is an injury to the inner ear or the auditory nerve, such as the presence of a foreign body or a wax plug, or they may be caused for problems in the middle ear including perforation of the tympanic membrane, alteration in the chain of ossicles or the presence of fluid / mucus in the tympanic cavity, which is usually permanent.
The second, which is the case of sensorineural hearing loss, involves a decrease in the function of hearing receptor cells (called hair cells because of small extensions that show on their surface) of the inner ear in the cochlea. It happens when sound waves cannot reach the inner ear, which can be caused by accumulation of wax or fluid, also by perforation of the eardrum.
Within this classification are presbycusis (hearing impairment associated with age), hearing loss associated with exposure to noise, sudden deafness, among others.
It has been possible to identify important symptoms to highlight in the suffering of this problem, which are: earache, hearing loss, otorrhea, tinnitus and vertigo.
Treatment of hearing problems is important as they can get seriously and hopelessly worse. According to multiple studies, around possible treatments include: the use of hearing aids, cochlear implants, special training, drug treatment, in mild cases of hearing problems, and surgery.
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