子宫颈机能不全是造成晚期流产与早产的重要原因之一,我院自1996年1月～1999年5月共收治了18例宫颈机能不全患者,现分析如下。1　临床资料1.1　年龄及孕产史　年龄为23～38岁,平均年龄30岁。18例中既往共妊娠89次,平均4.89次。每例最少妊娠3次,最多妊娠7次。在89次妊娠中... Cervical incompetence is caused by late abortion and premature birth one of the important reasons, our hospital from January 1996 to May 1999 were treated 18 cases of patients with cervical incompetence, are analyzed as follows. A clinical data 1.1 age and pregnancy history of 23 to 38 years old, with an average age of 30 years. In 18 cases, the previous total of 89 pregnancies, an average of 4.89 times. Each case of at least three pregnancies, up to seven pregnancies. In 89 pregnancies ...