Avoiding interventions close to the gravid uterus, of course, is always desirable. 而靠近妊娠子宫的操作往往是不可避免的。
Gravid uterus blood flow of90% from uterine artery, ligation uterine artery ascending branch can make uterine blood flow after interrupted, at the same time because of oxygen and make uterine smooth muscle contraction, and further oppression blood sinus bleeding. 妊娠子宫血流的90%来自子宫动脉,结扎子宫动脉上行支后可使子宫血流暂时中断,同时因缺氧而使子宫平滑肌收缩,而进一步压迫血窦止血。