五年来我们对脱环原因进行随访调查研究,现报告如下。 1 方法:①问诊:按统一表格询问,并详细填写记录。②查体:全部作盆腔检查,探测宫颈长度和自然松弛度以及宫腔深度,并进行对照。 2 结果分析:①宫颈内口与脱环的关系:我们调查了曾生育一胎的正常妇女的宫颈自然松弛度与脱环组进行对照(见表1)。从表中看出,宫颈内占松弛无力是脱环原因之一。②子宫位置与脱环的关 In the past five years, we conducted a follow-up investigation on the causes of de-looping and are reported as follows. 1 Method: ① Interview: according to a unified form to ask, and fill in the record. ② physical examination: all for pelvic examination, detection of cervical length and natural relaxation and uterine cavity depth, and control. 2 Results Analysis: ① cervical mouth and the relationship between the withdrawal: We investigated the natural pregnancy rate of normal women who had a child birth control group with the loop (Table 1). Seen from the table, the looseness of the cervix accounted for one of the reasons loop. ② uterine position and the closure of the ring