吸宫术是今日最常用于妊娠早期的中断方法,在吸宫术前对早期妊娠后期需要有轻柔的,适当的,无创伤性的,生理的逐渐扩张宫颈,虽然人工扩张是比较安全的简单操作,但有时比较困难而危险,应用金属扩张器如用力过大过速,可造成宫颈及子宫的损伤,过度的宫颈扩张可造成宫颈机能不全,随后反复引起中期妊娠流产或早产,并造成子 Aspiration is the most commonly used method of interruption of the first trimester of pregnancy and requires gentle, appropriate, noninvasive, and physiologic dilatation of the cervix prior to ectopic pregnancy, although manual dilatation is relatively safe Operation, but sometimes more difficult and dangerous, the application of metal dilators such as excessive force over speed, can cause cervical and uterine damage, excessive cervical dilatation can cause cervical incompetence, followed by repeated induced miscarriage or premature birth in the second trimester, and cause sub