异位妊娠(俗称宫外孕)是指受精卵在子宫腔以外着床发育,是妇产科常见的急腹症之一,也是导致孕产妇死亡的主要原因。由于异位妊娠的临床表现和体征变化多样,易与多种疾病相混淆,其误诊率高达59%～67.9%[1]。误诊为早孕行人 Ectopic pregnancy (commonly known as ectopic pregnancy) refers to fertilized eggs implantation in the uterine cavity outside the development of obstetrics and gynecology is one of the common acute abdomen, but also lead to maternal mortality is the main reason. As ectopic pregnancy clinical manifestations and signs of diverse, easily confused with a variety of diseases, the misdiagnosis rate as high as 59% to 67.9% [1]. Misdiagnosed as early pregnancy pedestrian