Intracranial complications of rhinosinusitis have been decreasing with r ecent advances in medicine. However, these diseases in children are still present, and recently cases following a serious clin ical course have been reported. We report a case of bacterial meningitis with frontal sinusitis. Previous reports and our case suggest that the incidence of intracranial complications of sinusitis is high in young males. Frontal sinusitis is most frequently encountered in cases of intracranial complications. Therefore, immediate and proper treatment is required when young males are suspected of having frontal sinusitis.