我院 1 993～ 1 999年连续 6年对 83名潜水员进行了Ｘ线跟踪观察 ,发现其中 2 2例出现不同程度Ｘ线上减压病骨坏死者现将结果报告如下。1 资料与方法本组 2 2名潜水员 ,平均年龄 4 2岁 ,平均潜龄 2 0年 ,水下作业时间 32小时 /年。下潜深度为 1 5～ 4 5米 ,出水后有症状者占 9 In our hospital from 1993 to 1999, 63 divers were examined by X-ray for 6 consecutive years and found that 22 of them showed different degrees of X-ray on osteoporosis patients. The results are reported as follows. 1 Materials and Methods The group of 22 divers, average age 4 2 years old, average age 20 years, underwater working time 32 hours / year. Dive depth of 15 ~ 45 meters, symptoms after the water accounted for 9