1 资料与方法1.1 资料来源 1997年2月至1998年2月来我院就诊者,在妊娠3个月内有阴道出血者42例,同时随机抽样在同期内无阴道出血者42例,以作对照,对孕妇认真监护,并一直追踪到产后。1.2 方法(1)确立观察项目、制表、专人监护、随访登记。(2)详细询问病史,如出血时间及量多少。(3)做尿妊娠试验,均做超声,必要时内诊检查以判定妊娠。 1 Materials and Methods 1.1 Source of Information February 1997 to February 1998 to our hospital, 42 cases of vaginal bleeding within 3 months of pregnancy, at the same time a random sample of 42 cases of non-vaginal bleeding in the same period for Control, careful monitoring of pregnant women, and has been tracking to the postpartum. 1.2 Methods (1) the establishment of observation items, tabulation, personal care, follow-up registration. (2) detailed history, such as bleeding time and how much. (3) to do urine pregnancy test, are done ultrasound, if necessary, internal examination to determine the pregnancy.