[背景 ]病毒性脑膜炎合并蛛网膜下腔出血的病例罕见 ,临床上容易忽略合并蛛网膜下腔出血的可能性 .[病例报告 ]病人入院时诊断为化脓性脑膜炎 ,尸检后确诊为病毒性脑膜炎合并蛛网膜下腔出血 .[讨论 ]临床表现为化脓性脑膜炎的病例如无尸检结果很难考虑到病毒性脑膜炎 ,因此在脑膜炎的预后估计上应充分考虑到并发蛛网膜下腔出血的可能性 [Background] Cases of viral meningitis combined with subarachnoid hemorrhage are rare and clinically prone to subarachnoid hemorrhage. [Case Report] The patient was diagnosed as purulent meningitis at admission and was diagnosed as a virus after autopsy Meningitis with subarachnoid hemorrhage. [Discussion] Clinical manifestations of purulent meningitis cases such as autopsy results are difficult to take into account viral meningitis, so the prognosis of meningitis should be fully taken into account the concurrent arachnoid Lower extremity hemorrhage possibility