What Blood Types Can Receive Blood Transfusion from Type O?

In people's perception, type O blood can be used to transfuse to other blood types, making it seem like a universal blood type. However, this perception contains certain misunderstandings. The prerequisite for type O blood to be transfused to other blood types is that the red blood cells do not have antigens. When transfusion is needed, it is better to choose blood that matches the patient's blood type.

Of course, type O blood has a stronger resistance to diseases and is relatively stronger in reproductive aspects. Therefore, when transfusion is needed, it is essential to first check the blood to avoid unavoidable situations.

Type O blood can be transfused to people with type O blood, but not to people with type A, type B, or type AB blood. Typically, when transfusion is required, it is recommended to use the same blood type as the recipient. Type O blood neither contains A antigens nor B antigens. If it is transfused to people with other blood types, such as type A, type B, or type AB, it may lead to severe hemolytic reactions and even death. Therefore, type O blood can only be transfused to people with type O blood.

Type O blood can only be transfused to patients when the red blood cells do not have antigens. When the red blood cells have A or B antigens, it cannot be transfused to patients with type A or type B blood, as it may cause immune hemolytic reactions and adverse reactions. Therefore, type O blood can be transfused to other blood types only under certain conditions, otherwise it may bring severe consequences.

1. People with type O blood tend to have stronger resistance to diseases, mainly because their blood contains a substance that promotes blood flow and reduces blood clot formation, making this blood type highly resistant to diseases. Additionally, people with type O blood have strong tolerance to malaria, gastric cancer, and other cancers.

2. People with type O blood also tend to be stronger in reproductive aspects. In particular, men with type O blood have a lower risk of impotence compared to men with other blood types. However, women with type O blood may have slightly poorer egg quality compared to women with type A blood.

Under normal circumstances, we do not recommend transfusing type O blood to people with other blood types because the serum of type O blood contains both anti-A and anti-B antibodies. When transfused into a person with another blood type, these antibodies can cause agglutination with the red blood cells in the recipient's blood, leading to hemolysis. However, due to the small amount of transfused blood and the large amount of blood in the recipient's body, the hemolytic risk can be reduced through dilution by blood circulation and neutralization of some anti-A and anti-B antibodies in the recipient's plasma by blood substances of type A or type B.