第三产程中胎盘多在胎儿娩出后的 5～15 min 从子宫壁剥离后娩出。如果经积极处理晚期妊娠第三产程（即在胎盘娩出前给予宫缩剂、控制性脐带牵引），新生儿娩出后 30 分钟内胎盘仍未娩出，称为胎盘滞留（Retained Placenta，RP）。

Coping with the emotional and physical aftermath of pregnancy-related experiences is no small feat. Women navigate a complex ...

After I delivered my son, my body forgot to complete the next step. Now, I want other moms to know the warning signs of this serious pregnancy condition.