脊髓蛛网膜下腔出血临床上少见 ,现报告 1例如下。1　病例　男 ,5 0岁。因发作性腹、背部疼痛、双下肢麻木、无力 15小时 ,尿潴留 9小时于 2 0 0 2年 8月 12日 10时入院。患者于 8月 11日晚 7时不明原因出现剧烈腹痛 ,向肩背部放射 ,8时出现双下肢麻木、无力 ,从足部向上发展 , Spinal cord subarachnoid hemorrhage is rare in clinical practice, a report is as follows. 1 case male, 50 years old. Due to episodes of abdominal, back pain, numbness of both lower extremities, weakness 15 hours, urinary retention 9 hours at 12 o’clock on the August 12, 2002 admitted. Patients at 7 o’clock on the August 11 unexplained severe abdominal pain, radiation to the back of the shoulder, 8 at the emergence of numbness in both lower extremities, weakness, upward development from the foot,