高危妊娠有广义和狭义之分。从广义的角度而言,凡对孕妇、胎儿、新生儿有较高危险的妊娠,称为高危妊娠。它包括的范围极广,概括起来可分为以下几类;(1) 孕妇原有各种严重疾病,如心脏病,糖尿病、肾病、肝病或血液病等;(2) 此次妊娠期出现的各种并发症或妊娠本身异常,如妊娠中毒症、前置胎盘,胎盘早期剥离,或羊水过多、多胎、母儿血型 High-risk pregnancy has a broad and narrow sense of the points. From a broad perspective, all pregnancies that are at higher risk to pregnant women, fetuses and newborns are called high-risk pregnancies. It includes a very wide range, can be summed up in the following categories: (1) pregnant women had a variety of serious diseases such as heart disease, diabetes, kidney disease, liver disease or blood diseases; (2) the emergence of this pregnancy A variety of complications or abnormal pregnancy itself, such as gestosis, placenta previa, early placental exfoliation, or polyhydramnios, multiple births, maternal and child blood type