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子宫外孕是妇产科急腹症中常见的疾病,又称异位妊娠,是指孕卵在子宫腔以外着床发育者,由于孕卵着床部位不同,分别称为输卵管妊娠、腹腔妊娠、卵巢妊娠等,其中以输卵管妊娠最常见,约占98%左右. 一.病因与分类卵子在输卵管壶腹部受精,受精卵因某些原因在输卵管被阻;而在输卵管的某一部份着床、发育、发生输卵管妊娠。以壶腹部妊娠为最多,占50～70%;其次为峡部,占30～40%;伞部、间质部最少见,占1～2%.
Ectopic pregnancy is a common disease in obstetrics and gynecology acute abdomen, also known as ectopic pregnancy, refers to the egg implantation in the uterine cavity outside the implantation, due to different parts of the pregnant egg implantation, respectively, tubal pregnancy, abdominal pregnancy, Ovarian pregnancy, tubal pregnancy in which the most common, accounting for about 98% .A causes and classification of eggs in the fallopian tube ampulla fertilization, fertilized eggs in the fallopian tube obstruction for some reasons; in a certain part of the fallopian tube implantation , Development, tubal pregnancy occurs. To ampulla pregnancy is the largest, accounting for 50 to 70%; followed by the isthmus, accounting for 30 to 40%; umbrella Department, interstitial rare, accounting for 1 to 2%.