目的:探讨除化脑以外常引起硬膜下积液的病因、发病机制及治疗价值。方法:对48例非化脑硬膜下积液临床资料进行分析:结果:48例经CT或MRI确诊为硬膜下积液,做腰穿等除外为化脑。对积液量较多者采取硬膜下穿刺放液治疗,治愈87.5％,因原发病死亡或自出者占12.5％ 经随访0.5a～1a,智力体格发育正常者占79.2％,留有脑萎缩、智力低下者占8.3％。结论:除化脑外有多种原因引起硬膜下积液,穿刺治疗操作简单,痛苦小,治愈率高。掌握时机穿刺放液及适当延长保守治疗时间是必要的。 Objective: To investigate the etiology, pathogenesis and therapeutic value of subdural effusion often caused by debridement. Methods: The clinical data of 48 cases of non-subdural effusion were analyzed. Results: Forty-eight cases were diagnosed as subdural effusion by CT or MRI. For those who had more effusion, they were treated by subdural puncture, 87.5% of them were cured, or died of primary disease or 12.5% ​​of those who had spontaneous discharge were followed up for 0.5a ~ 1a, 79.2% of them were normal physical development, leaving brain atrophy , Mental retardation accounted for 8.3%. Conclusion: In addition to the brain outside a variety of reasons caused by subdural effusion, puncture treatment is simple, painless, high cure rate. To grasp the timing of puncture and prolongation of conservative treatment time is necessary.