血友病合并蛛网膜下腔出血罕见,我院发现一例报告如下。患儿男,3岁。入院前3天从2m高处跌落,被人接住,腿碰到自行车上,否认头部被撞,左下肢股四头肌处出现大血肿,并发烧呕吐,以上感左下肢血肿入院。患儿自生后9个月即有轻微外伤后出血不止现象,曾因出血不止反复住院8次,均经输血及第Ⅷ因子后出血停止。患儿舅父患血友病因出血不止多次住院治疗。 Hemophilia combined with subarachnoid hemorrhage rare, our hospital found a case report as follows. Children male, 3 years old. Three days before admission dropped from 2m height, was caught, legs hit the bike, denied the head was hit, left quadriceps quadriceps appeared at a large hematoma, and vomiting, the sense of left lower limb hematoma admission. 9 months after childbirth autopsy that have minor traumatic hemorrhage not only phenomenon, repeated hospitalization due to bleeding more than 8 times, both after blood transfusion and factor VIII bleeding stopped. Uncle child suffering from hemophilia in children with multiple hospitalizations due to bleeding.