Why is type O blood universal?

Type O blood is not a panacea. Although a small amount of type O blood will not have much impact on type A, B, or AB patients, excessive blood transfusion can easily cause adverse conditions such as immune hemolysis.

Most blood types can be divided into O type, a type, B type and AB type. Except for O type blood, the other three blood types cannot be mixed and transfused. Corresponding resistance will occur and cause adverse symptoms. However, a small amount of O type blood and other blood types will not cause adverse conditions. However, there are certain anti-a and anti-B red blood cells in O type blood plasma. After being transfused into the body, it will cause different degrees of reactions, such as immune hemolytic adverse conditions. O type blood should be checked before blood transfusion.

Everyone's blood type may be slightly different, but most of them are related to the genetic genes of the parents. If you suffer from severe bleeding or have a car accident and have a lot of bleeding, you need to transfuse blood in time. You must first determine the patient's blood type and then find the corresponding blood type before transfusing it. Do not blindly transfuse O-type blood or other blood types into the patient.

Although O-type blood is not a panacea, it has a wider range of applications compared to A, B, and AB blood types. If O-type blood does not contain anti-A and anti-B elements, it can be transfused to other patients.