蛛网膜下腔出血在法医病理实践中相当常见。尤尸检时头部损伤不重而仅见蛛网膜下腔出血时，其出血是外伤性还是病理性的鉴定相当困难。以往不少人忽视了外伤性蛛网膜下腔出血。作者根据个人的经验结合复习文献，对外伤性蛛网膜下腔出血的有关问题讨论如下。1概念外伤性蛛网膜下 Subarachnoid hemorrhage is quite common in forensic pathology. Especially when the head injury is not heavy autopsy and only see subarachnoid hemorrhage, the bleeding is traumatic or pathological identification quite difficult. Many people in the past ignored the traumatic subarachnoid hemorrhage. The author based on personal experience combined with review of literature on traumatic subarachnoid hemorrhage related issues discussed below. 1 concept of traumatic subarachnoid