Postpartum hemorrhagic fainting, the name of the disease in Chinese medicine. It refers to the sudden dizziness after delivery, unable to get up and sit, or fullness of the heart and chest, nausea and vomiting, phlegm and shortness of breath, disturbed and restless, or even dizziness and silence, unconsciousness, called “postpartum hemorrhagic fainting”. There is no corresponding disease name in Western medicine, but clinical diseases such as deficiency, shock or amniotic fluid embolism caused by postpartum hemorrhage can be cross-referenced with this disease. It is one of the critical and serious diseases after childbirth. If the treatment is not timely, the life of the mother is often endangered, or other diseases may arise due to the deficiency of blood and Qi. Causes 1, blood deficiency gas off maternal body qi and blood weakness, and because of excessive blood loss during childbirth, resulting in the capture of Ying Yin, gas with the blood off, resulting in blood fainting. The “Women’s Science Jinglun” quoted Li Dong Yuan’s theory: “Women give birth, faint and close eyes, because of the death of Yin and blood, the heart and soul have nothing to feed.” 2, stasis blocked gas closed during or after childbirth feel wind and cold, cold evil invade the cell, blood for cold condensation, stagnation does not work, resulting in astringency of the dew, blood stasis and gas reversal, on the Utah God, and cause blood fainting. The blood evidence of the theory of blood – birth blood, “less blood and fainting, is the dew is grabbed on the heart, the heart is full of urgency, the gods faint mouth silence, absolutely do not know people.” Obstetric examination: to understand whether the fetal membranes and placenta are intact, the contraction of the uterus, whether there are signs of soft birth canal injury, and to observe the amount of vaginal bleeding. 2.Laboratory examination: blood routine, platelet count, prothrombin time, fibrinogen and other laboratory tests related to coagulation function can help clinical diagnosis. 3.Other tests: ultrasound, electrocardiogram, heart function test, kidney function test, blood pressure measurement, etc. can assist in the diagnosis.