过去10年里各地剖腹产率几无一处不大量增高。全美国剖腹产率亦在增高。例如1970年为5.2%而1976年则升至11.6%。纽约市各医院由1965年的6.09升至1975年的14.64%等等。这种上升主要有3种指征:即儿盆不称、胎儿窘迫和臀位。在这些情况下剖腹产对胎儿有明显的好处。然而必须权衡一下此术的优缺点。过去几年因儿盆不称(FPD)而行剖腹产数有所增加。有数据表明1937到1949年间因FPD作剖腹产者为1.75%,而1972到1975年则为3.97%。亦有报告谓1962到1975年因FPD作首次剖腹产为49%。产科医生心目中FPD的概念必已有所改变。在有些单位中“产 Over the past 10 years, Caesarean section around a few without a substantial increase. Cesarean section rates are also on the rise in the United States. For example, in 1970 it was 5.2% and in 1976 it rose to 11.6%. New York City hospitals rose from 6.09 in 1965 to 14.64% in 1975 and so on. There are three main indications for this increase: no pots, fetal distress and breech. Caesarean section has obvious benefits to the fetus in these circumstances. However, we must weigh the advantages and disadvantages of this technique. The number of caesarean sections has increased in the past few years because of FPD. Data show that from 1937 to 1949 due to FPD as a c-section was 1.75%, while from 1972 to 1975 was 3.97%. There were also reports of a 49% first caesarean section for FPD from 1962 to 1975. The concept of FPD in the eyes of the obstetrician will have changed. In some units "production