Abstract
In the past 10 years, there have been 108 cases of acute hearing disorders resulting from noise encountered in civic life. Some interesting cases excluding 71 cases with a hearing loss induced by exposure to discotheque sound were reported. There cases were classified into the following groups.
1) Hearing disorder occurred during they played Pachinko games (5 cases).
2) Hearing disorder occurred during test-firing with pistols (4 cases).
3) Hearing disorder occurred during sleep when headphones were worn (8 cases).
4) Infantile hearing disorder occurred during the patient played with a doll having a whistle (1 case).
5) Infantile hearing disorder occurred during practice of jazz dance (1 case).
Each of these cases showed specificity in hearing findings. We discussed causative factors of hearing disorder and stressed the necessity of socio-medical education to prevent hearing impairment in civic life. It is of prime importance that people should be educated to recognize that excessive sound may cause a hearing impairment.
