Blood TransfusionA blood transfusion is a medical procedure that involves transferring blood from one individual to another. Previous blood transfusion practices used whole blood as the transfusion product, that is, all blood components. But modern technology and discoveries allow doctors to transfer specific components of blood such as red blood cells or plasma. Attempts at blood transfusion date back to the 17th century, but it wasn't until an Austrian-American doctor discovered blood types that blood transfusions became more stable and safer. Blood transfusion is important both from a scientific and medical point of view, because a blood transfusion can save the life of a patient who has lost a lot of blood and prevent their heart from overworking due to lack of blood . Various blood transfusion apps like this will save patients from the clutches of death. The application of science to blood transfusion will be discussed, as well as the importance of blood transfusion to us humans. Last but not least; The problems societies face in blood transfusion will be analyzed in depth. A blood transfusion requires delicate scientific knowledge, otherwise many factors related to transfusions will go wrong, such as infection or blood allergies. One of the main elements that determines the safety of a blood transfusion is the blood type of the person giving the blood and the person receiving the blood. In 1901, an Austrian-American physician and biologist Karl Landsteiner discovered the different blood groups and organized them into the ABO blood grouping system. The theory is that there are four blood types: A, B, AB and O; and that a person can only...... middle of paper ...... blood transfusion is death in extreme cases. Nevertheless, to conclude, the discovery of blood transfusion constitutes a great step forward in medical science as well as in the prolonged campaign to extend human lifespan. Especially after the discovery of blood groups, blood transfusions have helped countless patients, and the possibility of something going wrong, such as an infection passing through the blood close to 0. The importance of blood transfusion is recognized in the world after observing the wonders it could do to people who lack blood. Although some religious groups do not accept blood transfusions, most people recognize the brilliance of blood transfusion, especially in emergency, life-or-death situations. Patient survivors of car accidents and blood diseases owe much to the discovery and improvement of blood transfusion.