胎盘早剥(足月异常阴道出血)是指正常位置的胎盘从宫壁剥离出血而形成血肿。若血肿到达宫颈外口,则表现为显性出血。若未到达宫颈外口,则表现为隐性出血。隐性出血往往延误诊断,造成对失血量的低估,从而导致凝血功能障碍和孕产妇死亡率的增加。严重的胎盘早剥,局部压力增大,血 Placental abruption (full-term abnormal vaginal bleeding) refers to the normal position of the placenta from the uterine wall to hemorrhage and hematoma formation. If the hematoma reaches the cervix outside the mouth, the performance of dominant bleeding. If you do not reach the mouth of the cervix, the performance of recessive bleeding. Recessive bleeding often delays diagnosis, resulting in an underestimation of blood loss, leading to an increase in coagulation disorders and maternal mortality. Severe placental abruption, local pressure increases, blood