In February this year, a mother in Linyi successfully gave birth to her second daughter, then, respiratory distress occurred, once cardiac arrest, but fortunately was rescued by doctors. As this news hit us inside, the final cause was diagnosed as amniotic fluid embolism. When it comes to amniotic fluid embolism, it is the killer that death declares war on doctors, so how exactly can it be prevented? Amniotic fluid embolism is a serious obstetric complication caused by the sudden entry of amniotic fluid into the maternal circulation during labor and delivery. The amniotic fluid enters the maternal circulation mainly through the cervical mucosal vein and the venous sinus of the placenta. Premature rupture of membranes, opening of abnormal uterine vessels, and excessive pressure changes in the uterine cavity are the main causes of amniotic fluid embolism. Who is prone to amniotic fluid embolism? Advanced age, multiple births, placenta praevia, placenta abruptio, twin births, giant babies, hypertensive disorders, uterine rupture, etc. How to prevent amniotic fluid embolism? The prevention of amniotic fluid embolism is firstly, to do regular labor and delivery. Secondly, if you feel irritable and chills during labor, you should tell your doctor in time. The specific points are as follows: 1) avoid high age birth; 2) follow the medical advice and pay attention to the triggering factors; 3) pay attention to a balanced diet during pregnancy to prevent the fetus from getting too big and increasing the risk during labor; 4) inform the doctor in time during labor and tell him/her if you feel uncomfortable such as chest tightness, irritability, chills, etc. so that he/she can do the treatment as early as possible; 5) do a good job Postpartum observation of the fourth stage of labor, timely detection of postpartum amniotic fluid embolism; 6, if problems arise during labor, listen to the doctor’s advice, do not delay to win time for resuscitation.