Objective: This study was conducted to determine conditions that may prevent the effective use of blood in blood transfusion.

Methods: The study’s universe consisted of transplanted and wasted blood and blood products (n=309) in a university research hospital orthopedics and traumatology, neurosurgery, pediatric hematology and pediatric intensive care clinics. Between 10.12.2014 and 20.04.2015, in the mentioned clinics, the data about blood waste and reasons was collected. The rates of use and waste of blood according to clinics, the rates of use and waste of blood according to the age of patients and the rates of use and waste of blood according to blood groups were analyzed by using independent t test.

Results: When the blood ratios used and wasted according to the clinics were examined, the mean blood amount used in the neonatal intensive care clinic was 27,79 ml, while the amount of blood wasted was 472,43 ml (Due to 500 ml Blood bags). The mean amount of blood used in the pediatric hematology clinic was 189.62 ml, and the amount of blood wasted at the same clinic was 310.38 ml. When the reasons of blood waste were examined, it was concluded that the rate of not using pediatric blood bags was 40.1% and the rate of unnecessary request was 59.9%.

Conclusion: As a result, despite the fact that there is still not enough blood donations nowadays, it seems that blood is wasted because of preventable causes and not being used effectively.