Early identification of Noise-induced hearing loss

Noise can cause multi-system damage, of which permanent damage to the auditory system is the most serious and about 5%-12% of the world's population exhibit varying degrees of noise. In the early stage of noise damage could cause mild tinnitus, hidden hearing loss or temporary high frequency hearing loss; as the increase of noise exposure time of, tinnitus and hearing loss aggravated, resulting in permanent hearing loss, meanwhile, can cause increase of speech recognition threshold and decrease of speech recognition score; some patients may also have symptoms such as insomnia, anxiety, dizziness, and headache. Therefore, early screening of people exposed to noise is important. Analyze the research overview related that, then classify the early screening technique of noise-induced hearing loss into DPOAE test, high frequency pure tone audiometry, speech audiometry, internet screening, tinnitus assessment, mental health level assessment and susceptibility gene screening, which provides a reference for clinical applications. Key words: Hearing Loss, Noise-Induced; Tinnitus; Screening