Recently, a news about amniotic fluid embolism on the internet has caused a wide debate in the medical and social circles, and amniotic fluid embolism has also entered into the view of the majority of pregnant women, which not only threatens the lives of the majority of pregnant women, but also is one of the serious illnesses that keep obstetricians awake at night. So what is amniotic fluid embolism? And how terrible is this disease? Amniotic fluid embolism is an acute condition caused by amniotic fluid entering the maternal circulation during labor and delivery, which can lead to a series of serious illnesses such as pulmonary embolism, anaphylaxis, hemorrhage and kidney failure, etc. It is the most serious complication during labor and delivery, and there is no one of them. Amniotic fluid embolism can be induced by advanced primigravida and multipara, spontaneous or artificially induced strong contractions, emergency delivery, premature rupture of membranes, placenta praevia, placenta abruptio, uterine rupture or cesarean delivery.