绒毛取材是早孕时对胎儿进行遗传性疾病产前诊断的手段之一,已日益普及。本文较全面地回顾了绒毛取材的方法,包括经宫颈的直接收集法、盲吸法、内窥镜下钳夹和抽吸法、B 超指导下钳夹和抽吸法、B 超下刷取、B 超和内窥镜双重指导下钳夹或抽吸法,以及经腹部的绒毛取材法,并对这些方法进行了比较和综合性评价。 One of the means of prenatal diagnosis of hereditary diseases of the fetus in early pregnancy is villus drawing. It has become increasingly popular. This article provides a comprehensive review of the methods of hair harvesting, including direct cervical collection, blind suction, endoscopic clamping and aspiration, B-clamp and suction, B- , B-ultrasound and endoscopic double-guided clamping or suction method, and the abdomen of the villus drawing method, and these methods were compared and comprehensive evaluation.