###Human: Hearing damaged after hearing high sound. Would doing the same thing cause further damage? ###Assistant: Hello. There is something called a temporary threshold shift and permanent hearing loss. Temporary loss is the loss which if a sudden burst of sound and you get hearing loss as hair cells are fatigued however hearing regains soon in some time. If it is a permanent loss that too at a severe level for all frequencies chances are the person will not notice the same loudness of the sound afterward however there are some pathologies where the sound amplifies itself, and it is called recruitment. So in that condition, the person may not even respond to a loud sound of 80 dB however they might complain abnormal loudness at 90 and feel the same discomfort as a person with normal hearing has. It all depends on the pathology and condition of the hearing loss.