目的 :研究三叉神经根与周围血管的关系。方法 :在手术显微镜下解剖灌注红色乳胶的头部标本 1 6例 ( 32侧 )。结果 :三叉神经根与周围血管 (主要是小脑上动脉和小脑下前动脉 )发生接触的占 5 0 .0 % ( 1 6 /32 ) ,形成压迫的占 1 2 .5 % ( 4/32 )。结论 :血管压迫三叉神经根是三叉神经痛的重要原因。 Objective: To study the relationship between the trigeminal nerve root and the surrounding blood vessels. Methods: Sixteen cases (32 sides) of the head of red latex were dissected under the operation microscope. Results: Trigeminal nerve root contact with peripheral blood vessels (mainly the superior cerebellar artery and anterior inferior cerebellar artery) accounted for 50.0% (16/32), forming compression of 12.5% ​​(4/32) . Conclusion: Vascular compression of the trigeminal nerve root is an important cause of trigeminal neuralgia.