In humans, blood groups are divided into many types and each type has its own characteristics. Accordingly, if an incompatible blood group is transfused, it can disrupt the structure of blood vessels, endangering the life of the person receiving the blood transfusion.

Depending on the patient's condition and the level of blood loss, doctors will prescribe transfusion of coagulants or blood products to perform appropriate emergency treatment to help the patient escape from critical condition and be saved at the last minute.

Blood transfusion is an effective and frequently prescribed treatment for anemic patients in all medical departments, especially patients with acute blood loss. In some cases such as obstetric complications or surgical procedures, large-scale blood transfusion is necessary but also brings certain risks and complications of blood transfusion.