There is no such thing as AB women’s blood being sweet, so it is not true that AB women’s blood is sweet. Blood type usually refers to the type of specific antigen on the red blood cell membrane, mainly red blood cells ABO blood type system and Rh blood type system. 1.ABO blood type: ABO blood type is based on the presence or absence of antigen A and antigen B on the red blood cell membrane, the blood can be divided into four blood types. If there is only antigen A on the red blood cells, it is blood type A. If there is only antigen B, it is blood type B. If there are both A and B antigens, it is blood type AB, and if there is neither antigen A nor antigen B, it is blood type O. 2. Rh blood type: human red blood cells also have the same antigen with rhesus monkeys, containing this antigen is known as Rh-positive blood type, does not contain this antigen is known as Rh-negative blood type. Rh-positive blood type accounts for about 99% of the people, Rh-negative people accounted for only 1% or so, so Rh-negative blood type is also known as panda blood. The Rh blood group system is one of the most complex of the red blood cell blood groups, with the D antigen being the most antigenic, so it is common to refer to the presence of the D antigen on red blood cells as Rh-positive, and the absence of the D antigen on red blood cells as Rh-negative. If you want to know what blood type you have, you can go to the hospital for a blood typing test.