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because there body will reject it A universal donor's blood (O-negative) does not carry the antigens that cause rejection but other blood groups do carry the antigen that triggers the immune response. Read the link.
When you have negative blood you're automatically an universal donor. These groups have packed red blood cells. AB are receivers which mean they can receive any blood donated to them.
The four blood types are A, B, AB, and O. The universal donor is O and the universal recipient is AB
No. O negative is the universal donor.
Yes, A person having O +ve blood group is universal donor
O negative is the universal donor because when O+ve blood group is transfused to -ve blood group recipient, antibodies are produced which causes hemolysis of Rh +ve labelled blood cells. When O-ve blood is transfused to Rh +ve recipient, no antibodies are produced as donor blood has no Rh factor present on blood cells, so no transfusion reaction occurs. Thus, O -ve is universal donor.
The blood type that is theoretically considered the universal donor is type O. Type O blood does not have any antigens, therefore it is compatible with any blood type.
Blood type O-
Blood type O is a universal donor of all blood types but can only receive from blood type O. Blood type AB is the only blood type that is a universal receiver of any blood type, but can only receive from blood type AB.
Blood type O is the universal donor.
Type O negative.
The universal donor is blood type O.