Abstract: Postpartum hemorrhage is still the leading cause of maternal mortality worldwide so far. Blood transfusion plays a very important role in the treatment of postpartum hemorrhage, especially massive postpartum hemorrhage and intractable postpartum hemorrhage. In clinical practice, allogeneic blood transfusion is the main method, while autologous blood transfusion is rare. The intraoperative cell salvage (IOCS) may lead to iatrogenic amniotic fluid embolism, allogeneic hemolysis and so on, which, to some extent, has hindered the development of IOCS in cesarean section. However, in recent years, with the increase of pregnant women with high risk, scar uterus and so on and the improvement of autotransfusion related technologies, the clinical application of IOCS in cesarean section has gradually increased, and its effectiveness and safety have been confirmed. It can not only reduce allogeneic blood transfusion, avoid its related complications and adverse reactions, but also solve the problem of scarcity of blood resources to some extent, at the same time reduce maternal and social economic burden, reduce the occurrence of adverse pregnancy outcomes, and even save maternal life. This article reviews the problems and clinical applications of blood salvage and blood doping in cesarean section.

Key words: Postpartum hemorrhage, Blood loss, surgical, Cesarean section, Operative blood salvage, Blood transfusion, autologous