The causes of high frequency hearing loss in patients are as follows: I. Sudden deafness: A large proportion of patients are caused by sudden deafness, which may be induced by overexertion, mental tension and staying up late. Second, hereditary deafness: Some patients are caused by family genetic factors, and patients with hereditary deafness may experience high frequency hearing loss. 3. Noise stimulation: Some patients are caused by long-term exposure to noise stimulation, or may be caused by sudden encounter with loud noise stimulation. There are individual differences in the specific causes. After patients find high-frequency hearing loss, it is recommended to go to the ENT department as soon as possible to do an audiological test to determine the degree and type of hearing loss and to carry out targeted treatment.