The purpose of this study was to evaluate the factors affecting the time elapsed before hospital visit after onset of acute scrotum, to contribute to early recognition of the disease and to improve the testis salvage rate. We evaluated 90 cases of patients under 18 year or age with acute scrotum, who visited the Pusan National University Hospital between March 1997 and March 2006. Clinical data were collected through telephone interviews and surveys of medical records. The time elapsed before hospital visit after onset of symptom were reviewed with regard to the age of their parents, school career and income level of parents, Nunmber of sieblings, both parents' working, age of patients, and the knowledge of their parents about acute scrotum. The mean time passed before hospital visit was 48 hrs (1~300 hrs). The causative diseases were testicular torsion, acute epididymitis, torsion of appendix testis, acute orchitis. School career of mother, income level, both parents' working and knowledge of their parents about acute scrotum had significant influence on the time passed before hospital visit after onset of symptom. Our results suggest that improvement of the testis salvage rate requires that children, their families and teachers should be aware of this disease and its sequelae through public education projects.