Incidence 30.5%,in our country0.24%~1.57%, recently reported 1.3~4.6% clt is the major reason of hemorrhage in the third trimester pregnancy
Incidence 0.5%, in our country 0.24%~1.57%, recently reported 1.3~4.6% It is the major reason of hemorrhage in the third trimester pregnancy
Etiology 1.Lesion of uterine endometrium Puerperal infection,prolificacy, curettage,cesarean section et al-> endometritis,the trauma of endometrium→take more nutrition-→ placental area enlarged
Etiology 1. Lesion of uterine endometrium Puerperal infection, prolificacy, curettage, cesarean section et al→ endometritis, the trauma of endometrium→ take more nutrition → placental area enlarged
2.Abnormal placenta QRTwin pregnancy Succenturiate placenta Horseshoe placenta RLingual -shaped placenta oRPlacenta membranacea
2. Abnormal placenta Twin pregnancy Succenturiate placenta Horseshoe placenta Lingual –shaped placenta Placenta membranacea
07 3.The retardation of zygote growth When the zygote reached the cavity of uterus,it didn't develop to the late blastocyst which moved to the low segment of uterus to imbed
3.The retardation of zygote growth When the zygote reached the cavity of uterus, it didn’t develop to the late blastocyst which moved to the low segment of uterus to imbed
受精後3G特間 桑定胚 受精楼3日 受精 89 受需後4日 胞胚 受精後5日 排卵 受精後6日 子宫内膜